A cart sits at the top of a ramp where it has 75J of gravitational potential energy. As it rolls down the ramp, it reaches a point where it has 35J of gravitational potential energy. How much kinetic energy does it have at this point on the ramp? Question 12 options: 2 J 35 J 40 J 110 J
A cart sits at the top of a ramp where it has 75J of gravitational potential energy. As it rolls down the ramp, it reaches a point where it has 35J of gravitational potential energy. How much kinetic energy does it have at this point on the ramp? Question 12 options: 2 J 35 J 40 J 110 J
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A cart sits at the top of a ramp where it has 75J of gravitational potential energy. As it rolls down the ramp, it reaches a point where it has 35J of gravitational potential energy. How much kinetic energy does it have at this point on the ramp?
Question 12 options:
2 J
35 J
40 J
110 J
Expert Solution
Step 1
The initial energy of the cart, where it is sitting at rest on the top of a ramp is 75 J, which is the gravitational potential energy of the cart. Since the cart is at rest at this point, it will have a zero kinetic energy.
So the total energy of the cart at this point is
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