Newtons Laws of Motion

Friction force is equal to the force applied only when the object is not moving or it is just beginning to slide. Once the object has started motion completely, it means that the force applied has exceeded the frictional force

The law of unbalanced forces states that when two forces acting on an object are not equal in magnitude and opposite in direction, the object will accelerate in the direction of the greater force. This is described by Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

While the forces between the truck and trailer are equal in magnitude and opposite in direction, they act on different objects (truck and trailer) resulting in acceleration of the entire system. The truck exerts a force on the trailer causing it to accelerate forward, and in return, the trailer exerts an equal and opposite force on the truck. As both objects have different masses, this results in them accelerating in the direction of the larger force, which is from the truck to the trailer.

Newton's second law of motion (F=ma) explains how a force acting on an object will cause it to accelerate. In terms of vehicle safety, this law is crucial because it helps engineers design vehicles with the right balance of mass and acceleration to ensure they can stop or maneuver safely in various driving conditions. Understanding this law also helps in designing safety features like airbags and seatbelts to protect occupants in case of a collision.

Unbalanced forces are important in order to move anything. An object under balanced forces does not move. For example as you sit in your chair reading this, gravity is exerting a force on your body downwards but your chair balances this force by exerting a force upwards on you that is equal and opposite to the force of gravity. These two forces oppose each other and therefore you do not move. In tennis in order to change the direction of a tennis ball you need to exert a net force(an unbalanced force) in the direction you want the tennis ball to move. In tennis there are also unbalanced torques(a force acting at a distance from a pivot point) on the ball that cause the ball to spin. Hope that helps.

Multiply the force by the distance. The mass is irrelevant for this problem.

The object that serves as the reference point for determining motion is known as the frame of reference. It is used to describe the motion of an object relative to another object or observer. The choice of frame of reference can affect how motion is described and analyzed.

You can make a simple forcemeter using a spring scale, rubber bands, a wooden stick, and a hook. Attach the hook to the spring scale, then use rubber bands to connect the hook to the wooden stick. Apply force to the stick, and the spring scale will measure the force exerted.

Another name for Newton's first law is "the law of inertia."

The law of acceleration in physics is described by Newton's second law, which states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Mathematically, this is represented by the equation F = ma, where F is the net force, m is the mass of the object, and a is the acceleration. This law helps us understand how objects move and interact with each other in the presence of forces.

By definition, friction is opposite of the direction of motion.

All three of Newton's laws are acting in this situation. Newton's first law states that a body at at rest will remain at rest and a body in constant motion will retain that motion unless a force acts to cause an acceleration. This law explains why the car moves with the same speed until the driver pushes the accelerator. Newton's second law states that the acceleration a body is experiencing is proportional to the force acting on the body to cause the acceleration. This law explains why the amount force the driver puts on the accelerator determines the amount of acceleration the car experiences. The third law states that if body A exerts a force on body B, body B will exert an equal but opposite force on body A. This law explains why the car does not fall through the road surface, why the driver can sit in the car and why the accelerator can be pushed.

Acceleration of a falling object is caused by the force of gravity. Gravity is a force that pulls objects towards the center of the Earth, causing them to accelerate downward at a rate of 9.8 m/s^2.

Yes, the momentum of a system will change when a net force acts on it. According to Newton's second law of motion, the change in momentum of a system is directly proportional to the net force acting on it.

The object will move in the direction of the net force, which is the vector sum of all the forces. In this case, the net force would be 3N + 10N + 8N + 5N = 26N. So, the object will move in the direction of the resultant force, which is 26N.

A radar gun is commonly used to measure the velocity of a moving human. It works by sending and receiving radar waves that bounce off the moving person and calculate their speed based on the Doppler effect.

Using the formula F = ma, where F is the net force, m is the mass of the object and a is the acceleration, we can rearrange the formula to solve for mass: m = F/a. Plugging in the values, we get m = 10 N / 2 m/s^2 = 5 kg. So, the mass of the object is 5 kg.

Frictional force equals 14 Newtons

Fnet = Fp - Ff so rewriting the equation gives us: Ff = Fp - Fnet

(Fnet is net force, Fp is force of push, and Ff is frictional force)

We already know that Fp is 32 N and we can find Fnet by using Newton's Second Law: F = ma

Fnet equals 5 kg times 3.6 m/s2 = 18 N

So Ff = 32 N - 18 N which equals 14 N

Inertia. This is the word that best defines Newton's first law of motion, which states that an object at rest will stay at rest and an object in motion will stay in motion with a constant velocity unless acted upon by an external force.

the first law is:

An object at rest stays at rest and an object in motion stays in motion unless acted on by an outside force

so all of them.

-in golf, the golf ball will move when hit and stop only when gravity and friction make it happen.

in this case the ball is at rest on the tee and will not move until struck by the club (acting as ouside force 1), at which poin it then flies out until the friction of the air and gravity's pull force it back down to the earth, at which point friction with the ground is then added which all conspire to slow the ball to a stop.

-in foot ball, the players run with the ball until tackled by another player.

in this case the two players are the opposing forces

-in baseball the ball is thrown is moves toward the catcher until either the bat strickes it and it is sent elsewhere, or the catcher catches it and throws it back to the pitcher.

in this case the ball is the object and the bat and pitcher are the outside forces acting on the ball to give it motion.

No, Newton's First Law of Motion states that an object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an external force. This law has been validated through numerous experiments and observations and forms the basis for our understanding of inertia.

The direction of friction is opposite to the direction of motion. This means that when an object is moving in one direction, the friction force is acting in the opposite direction, trying to slow down or stop the object.

According to Newton's 2nd law of motion, both the basketball and baseball would travel the same distance if equal force were applied to them. This is because the acceleration of an object is directly proportional to the force applied to it, assuming the masses of the two objects are the same.

The work done by the cable is equal to the force applied by the cable multiplied by the distance it moves. The work done by the elevator is zero since it moves at a constant velocity, meaning there is no change in kinetic energy. The work done by the cable is equal to the force of gravity on the elevator multiplied by the distance it is lifted. Work = force x distance = (mass x gravity) x distance = (1380 kg x 9.8 m/s^2) x 29 m = 390,804 Joules.