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Q: What will be the velocity after 7 s from start an object starting from rest travels 20 m in first 25 s and 160 m and next 4 s?
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What laws of motion is this An object travels at a constant velocity unless it is acted upon by an outside force?

Newton's First Law of motion


What is velocity at which a falling object travels when the force of air resistance matches exactly the downward force of gravity?

newton's first law states: an object will remain at rest or at a constant velocity unless the forces on it become unbalanced. As the forces on the object are now balanced it falls at a constant velocity. For falling objects this is called the terminal velocity


What is the definition of Newtons first law?

Newton's First law means that a force changes either the direction in which an object travels, the speed the object travels,or the shape of the object.


What happens to the speed of an object as it travels farther without any additional force added to it?

Newton's First Law explains what happens in this case.If no force acts on the object, its speed won't change over time. In fact, its velocity won't change either.


How are motion and acceleration different?

In Simple motion, there is no force being applied. The moving object moves in a straight line with constant velocity. In acceleration, there is a force applied. The object's velocity is changing. The first derivative of acceleration is velocity. The first derivative of velocity is distance. (Derivative is a calculus thing.)


Why do you need to calculate velocity instead of speed?

Speed and Velocity are two different things . Velocity- "the rate at which an object changes its position." Speed- "How fast an object is moving". To calculate speed and velocity, you first need to calculate distance and time. Velocity is considered to be a more logical term


Which type of collision occurs when a baseball bat hits a baseball?

inelastic collision The formulas for the velocities after a one-dimensional collision are: where V1f is the final velocity of the first object after impact V2f is the final velocity of the second object after impact V1 is the initial velocity of the first object before impact V2 is the initial velocity of the second object before impact M1 is the mass of the first object M2 is the mass of the second object CR is the coefficient of restitution; if it is 1 we have an elastic collision; if it is 0 we have a perfectly inelastic collision


Which of newtons law states that the velocity or speed of an object does not change unlewhich of newtons law states that the velocity or speed of an object does not change unless a force interferes?

That is Newton's First Law.


How does Newtons first law relate to the equilibrium rule?

If the forces are balanced (in other words, the net force on an object is zero), then the object will not accelerate (its velocity will not change).If the forces are balanced (in other words, the net force on an object is zero), then the object will not accelerate (its velocity will not change).If the forces are balanced (in other words, the net force on an object is zero), then the object will not accelerate (its velocity will not change).If the forces are balanced (in other words, the net force on an object is zero), then the object will not accelerate (its velocity will not change).


What law of motion says that an object that maintains constant velocity unless acted on by another force?

First


What will reach its terminal velocity first a penny or an elephant?

Which ever object has the lowest terminal velocity since it will take longer to accelerate to a higher velocity. Galileo showed that dissimilar object fall at similar rates and in the absence of air both objects would fall at an identical rate.


What is the acceleration of an object if velocity remains constant?

velocity is the first derivative of motion, with acceleration being the second; if an object has a constant velocity, then it's acceleration is 0. This is easy to see from everyday life, when you are in a car, you only feel it jerk when you are accelerating but once you've reached your speed you feel nothing.