Question

please answer and explain it​

Answer 1

Answer : b

Explanation :-

a. False, it is non-zero.

b. True, example : in a plane with no friction, while the tyres are still in a state of motion and the body isn't, it tends to move and as there's no opposing force ( friction ), the vehicle could not be stopped.

c. False, as the angle of inclination is increased, the normal reaction on the body decreases.

d. False, the work done in rubbing it upwards through a distance of 10 cm is 1.05 J.

Hope it helps!

Answer 2

please thank all my answers

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