Which of the following is not a perfectly inelastic collision?
A. Striking of two glass balls
B. A bullet striking a bag of sand
C. An electron captured by a proton
D. A man jumping onto a moving car
Answer: Option A
A. Striking of two glass balls
B. A bullet striking a bag of sand
C. An electron captured by a proton
D. A man jumping onto a moving car
Answer: Option A
Which of the following can do more work?
A. A raised hammer
B. A bullet fired by the gun
C. A moving stone
D. A rotating wheel
A. Energy released by a moving object
B. Energy emitted during mechanical work
C. The sum of the kinetic energy and potential energy of an object
D. Equal to the rate of work done
A. Chemical energy
B. Potential energy
C. Kinetic energy
D. Heat energy
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