A man is in a car is moving with velocity of 36 km/hr. His speed with respect to the car is:
Correct answer: B. Zero
- A. 10 mls
- B. Zero
- C. 36m/s
- D. Infinite
Explanation
Both man and car have the same speed. So, their relative speed will be zero.
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Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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