Which would take more force to stop in 10 seconds: an 8.0-kilogram ball rolling in a straight line at a speed of 0.2 m/sec or a
1 answer:
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Answer:29.8 cm/s
Explanation:
Given
mass of marble A is
Initial velocity of marble A is
mass of marble B is
Initial velocity of marble B
After collision marble B moves with velocity of
Conserving momentum
100 Joules have been used to roll the object up the ramp, but only 90 Joules were actually needed to lift the object, this means that 10 Joules have been wasted in the form of heat due to the friction between the object and the ramp, and this corresponds to
so, 10 % of the energy.
so, 10 % of the energy.