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Cart is rolling down a special ramp where there is no friction at all What will happen if the amount of mass on the cart is increased?
If the mass of the cart is increased, the kinetic energy of the cart will also increase as it rolls down the ramp. The velocity of the cart will increase as well, since the kinetic energy is directly proportional to both mass and velocity squared.
What are the three situations for changing velocity?
The three situations for changing velocity are speeding up, slowing down, or changing direction.
When cars are changing direction they are also changing what?
When cars are changing direction, they are also changing their velocity vector, which includes speed and direction. This change in velocity requires acceleration, which can be in the form of turning left or right, slowing down, or speeding up.
What is an object changing direction an example of?
An object changing direction is an example of acceleration. When an object changes its velocity, either by speeding up, slowing down, or changing direction, it is experiencing acceleration, which is the rate of change of velocity.
Can a body have constant velocity and changing speed?
No, in order for the velocity to be constant, the speed has to be constant. Speed is a scalar, meaning that it is just a number. (A car goes 50 miles per hour). Velocity is a vector, which indicates that it needs a measure of its displacement and a direction. (A car is going 50 mph to the east). A body can have a constant speed but a changing velocity because the direction can change while the speed is constant. (A car goes 50 mph around a roundabout). However, a body can not have a constant velocity with a changing speed. A car can not be slowing down yet still be going the same speed and direction.
Cart is rolling down a special ramp where there is no friction at all What will happen if the amount of mass on the cart is increased?
If the mass of the cart is increased, the kinetic energy of the cart will also increase as it rolls down the ramp. The velocity of the cart will increase as well, since the kinetic energy is directly proportional to both mass and velocity squared.
What are the three situations for changing velocity?
The three situations for changing velocity are speeding up, slowing down, or changing direction.
When cars are changing direction they are also changing what?
When cars are changing direction, they are also changing their velocity vector, which includes speed and direction. This change in velocity requires acceleration, which can be in the form of turning left or right, slowing down, or speeding up.
The process of changing velocity?
Changing velocity involves either increasing or decreasing speed, or changing direction. This can be achieved through acceleration, which is the rate of change of velocity over time. In other words, when an object speeds up, slows down, or changes its direction, its velocity is changing.
How the velocity of an escalator that is going up different from the velocity of one that is going down at the same speed?
Speed is a scalar, velocity is a vector. Two objects moving at the same speed but in opposite directions will have opposite velocities. If the velocity of the elevator going up is v, the velocity of the elevator going down will be -v.
Is the rate of your velocity change your acceleration?
Yes, the rate of change of velocity is equal to acceleration. This means that if an object's velocity is changing, it is experiencing acceleration, either by speeding up, slowing down, or changing direction.
What is an object changing direction an example of?
An object changing direction is an example of acceleration. When an object changes its velocity, either by speeding up, slowing down, or changing direction, it is experiencing acceleration, which is the rate of change of velocity.
Can a body have constant velocity and changing speed?
No, in order for the velocity to be constant, the speed has to be constant. Speed is a scalar, meaning that it is just a number. (A car goes 50 miles per hour). Velocity is a vector, which indicates that it needs a measure of its displacement and a direction. (A car is going 50 mph to the east). A body can have a constant speed but a changing velocity because the direction can change while the speed is constant. (A car goes 50 mph around a roundabout). However, a body can not have a constant velocity with a changing speed. A car can not be slowing down yet still be going the same speed and direction.
A cart is rolling down a special ramp where there is no friction at all What will happen if the amount of mass on the cart is increased?
The cart will move at a constant velocity.
What does it mean when a change in velocity is negative?
Something is decelerating . I.e it's still going forward, but at a reduced and falling speed.
Describe the to ways in which velocity can change?
Velocity can change by either changing the speed of an object or changing its direction of motion. If an object speeds up or slows down, its velocity will change. Similarly, if an object changes its direction, its velocity will also change.
Is acceleration a change in the position of an object?
Yes. Acceleration is a change in velocity. As velocity is a vector (direction and speed) changing either the speed or direction will change the velocity and thus be an acceleration (or decelleration)
