A ball of mass 0.12 kg is moving with a speed 20 m/s. Calculate the de Broglie wavelength. (Planck constant h=6.62×10 −34 J.s)

A body of mass 15 kg is moving with a velocity 20 m/s. Calculate the distance travelled by the body before stopping, if a force of 30 N is applied on the body in the direction opposite to the direction of motion.

A scooter of mass 120 kg is moving with a uniform velocity of 108 km/h. Calculate the force required to stop the vehicle in 10 sec.

A scooter of mass 75 kg is moving with a.Velocity 72 km/h. Calculate the force necessary to stop the scooter at a distance of 100 m.

The work function of a metallic surface is 2.5 eV. Ultraviolet light of wavelength 2000Å is allowed to be incident on the metallic surface. Calculate Stopping potential. (Given Planck's constant h = 6.63 xx 10^(-34) J-s , electronic charge e = 1.6 xx 10^(-19) C, electron mass m = 9.1 xx 10^( -31) kg

Calculate the de - Broglie wavelength associated with an electron having speed 10^(7) ms^(-1)

A bullet of mass 40gm is fired from a gun of mass 8kg with a velocity of 800 m/s, calculate the recoil velocity of gun.

A ball of mass 1.2 kg moving with velocity 20cm/s collides with another body of equal mass at rest.Find the loss of K.E of the system,assuming that co -efficient of restitutionis 0.6.

A body of mass 150 kg is moving with a velocity 20 m/s and it takes 5 sec. to stop after the brakes are applied. Find the.acceleration and applied force.

Calculate the de Broglie wave length of a ball of mass 0.16kg moving with a speed of 18m/s .