Question

Assertion-We know novice player tries to catch the cricket ball almost instantly and this hurts him. Reason-Force not only depends on the change in momentum but also on how fast the change in momentum is brought about.

A monkey seems to climbs up and another monkey seems to move down at same rope hanging over a pulley with same uniforms acceleration. If the respective masses of monkeys are in the ratio 1:3. Find the common acceleration?

The tension in the string shown in figure

An athlete of mass 50 kg climbs on a rope which can withstand a maximum tension of 400 N. The rope will break if the athlete i) Climbs up with an acceleration of 6 ms⁻² ii) slips down with acceleration of 5 ms⁻² iii) climbs up with a uniform speed of 2ms⁻¹. (Given g=10ms⁻²)