1) A cat is running at 8.0 m/s and trying to catch a mouse, who has a tenth of t
ID: 1282459 • Letter: 1
Question
1) A cat is running at 8.0 m/s and trying to catch a mouse, who has a tenth of the mass of the cat. If the cat speeds up by 2.0 m/s, the cat has ten times of the kinetic energy of the mouse. What is the speed of the mouse?
answer: ______ m/s.
2) A puck of mass 0.165 kg, initially resting on ice, is hit by a stick to gain a speed of 32.0 m/s and then slides 25.0 m to lose 5.00% of its kinetic energy. (a) What is the work done on the puck by the stick? (b) What is the kinetic friction coefficient between the ice and puck?
(a) ____J;
(b) ____.
3) A box of mass 52 kg is pushed up an incline that has a total length of 7.0 m and is tilted 21
Explanation / Answer
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