# Class 9 Force and Laws of Motion Important Questions

Force and Laws of Motion Important Questions Using second law of motion, derive the relation between force & acceleration. A bullet of 10 g strikes a sand-bag at a speed of 1000 m/s & gets embedded after travelling 5 cm. Calculate : the resistive force exerted by the sand on the bullet the time taken […]

# Class 9 Force and Laws of Motion Notes

Force and Laws of Motion Notes Force:- A push or pull on an object is called force. A force can change- the state of motion of an object i.e, motion to rest or, rest to motion. the speed of the object the direction of motion the shape of the object Contact Force:- The force exerted […]

# NCERT Solutions Class 9 Science Chapter 9 Force and Laws of Motion

In-Text Questions Solutions In Text-Questions Page 118 Which of the following has more inertia:(a) a rubber ball and a stone of the same size? (b) a bicycle and a train?(c) a five rupees coin and a one-rupee coin?Ans:- (a) Mass of a stone is more than the mass of a rubber ball of same size. […]