Questions in Laws of Motion

Select	Question
	A mass of 1 kg is suspended by a string A. Another string C is connected to its lower end (see figure). If a sudden jerk is given to C, then
	In the above Question, if the string C is stretched slowly, then
	If a bullet of mass 5 gm moving with velocity 100 m /sec, penetrates the wooden block upto 6 cm. Then the average force imposed by the bullet on the block is
	Newton's second law gives the measure of
	A force of 100 dynes acts on mass of 5 gm for 10 sec. The velocity produced is
	An object will continue moving uniformly until
	A diwali rocket is ejecting 0.05 kg of gases per second at a velocity of 400 m/sec. The accelerating force on the rocket is
	A body of mass 2 kg moving on a horizontal surface with an initial velocity of 4 m/sec comes to rest after 2 sec. If one wants to keep this body moving on the same surface with a velocity of 4 m/sec, the force required is
	A body of mass 2 kg is hung on a spring balance mounted vertically in a lift. If the lift descends with an acceleration equal to the acceleration due to gravity ‘g’, the reading on the spring balance will be
	In the above problem, if the lift moves up with a constant velocity of 2 m/sec, the reading on the balance will be