A wire is stretched by 2 equal and opposite forces 15 N each. The tension in the string will be:
Efficiency of cyclist when he does 12 J of useful work from every 100 J of food energy he takes is
If we place some coins over paper strip and pull it with a jerk, then coins don't falloff because of
Branch of mechanics that deals with study of motion of an object and cause of its motion is called
Two masses 7.5 kg and 6.7 kg are attached to ends of an inextensible string passes over a frictionless pulley. Its tension when both masses are moving vertically will be equal to
If bullet of mass 20 g is fired from a gun of 5 kg with a velocity of 100 ms-1 then recoil of gun is
A brick of mass 100 g is attached to a rope 1m long. brick is rotating in a circle with 5ms-1 speed. tension in rope will be
Force needed to prevent a body of mass 13 kg from falling will be
A bullet of mass 30 g is fired from a gun with a muzzle velocity 90ms-1. If its mass is 4 kg then recoil of gun will be
Acceleration produced in a 8 kg mass when force acts on a body of 5 kg produces acceleration of 10 ms-2 is
Push and pull that moves or tend to move, stops or tends to stop motion of a body is known as
Ratio of force of limiting friction to normal reaction is
Force of friction between a rolling body and a surface over which it rolls is called
Property of a body due to which it resists any change in its state of rest or motion is termed as