Force and laws of motio
What force would be needed to produce an acceleration of 6m/s2 on a ball of mass 6 kg??
The force F acting on a particle of mass m is indicated by the force-time graph shown below. The change in momentum of the particle over the time interval from zero to 8 s is
A body (without air space) of mass 200 g and volume 300cm3 is put in water. Will it float or sink? (Density of water is 1g/cm3)
A wooden block of mass 1kg and volume 1.7×10−3m3 is completely immersed in water. The buoyant force exerted by water on the wooden block is ____. Density of water is1000kg/m3.
A hammer weighing 2.5 kg moving with a speed of 1 m s−1 strikes the head of the nail driving it 10 cm into the wall. The acceleration during impact and the impulse imparted to wall will be respectively
The Velocity-time graph of an object moving in a fixed direction is shown in the given figure. The object:
Read the given statements and select the correct option.Statement1:Ifwepushamassivetruckparkedalongtheroadside,itwill¬move.Statement 2: Two opposite and equal forces acted on two bodies in contact cancel each other.
Direction: Read the passage carefully and answer the following question.Anobjectofmass1.5kgtravell∈g∈astraightl∈ewithavelocityof5ms−1collideswithaw∞denblockofmass5kgrest∈gonthe⌊.⌋This object sticks with wooden block after collision and both move together in a straight line. The velocity of the combination of these objects after collision is