What will be the momentum of a body of mass 0.5kg moving with a speed of 10ms.
Step 1. Given data:
mass m= 0.5kg
speed v= 10ms
Step 2. Calculations:
So Momentum = mass x speed
Hence momentum of the body will be 5kg.ms
A body of mass 20kg is moving with a velocity of 1ms Another body B of mass 1kg is moving wills a velocity of 20ms. Find the ratio of kinetic energy of A and B
Momentum of a body of mass 0.5 kg moving with a speed of 10 m/s is
Calculate the time for which a motor pump of 10HP and efficiency 80% must be switched on, so as to pump 20m3 of water through a vertical height of 20m. [Density of water = 1000kgm3, g=10ms2, 1HP=750W]
A bullet of mass 0.2kg, moving with a velocity of 200ms, strikes a stationary wooden target of mass 5kg.. If all the energy is transferred to the wooden target, calculate the velocity with which the target moves in the forward direction.
A girl of mass 50kg climbs a flight of 100 stairs each measuring 0.25m in height in 20s.[Take g=10ms2]
Find the power in watts.