Calculate the time in which 4.8 kJ of energy would be expended when an electric heater of resistance 1.8 x 103Ω is used on a 240 V mains supply. (Neglect he...

What change in velocity would be produced on a body of mass 4kg if a constant force of 16 N acts on it for2 s?

Solid weighs 0.040 N in air and 0.024 N when fully immersed in a liquid of density 800 kg m-3. What is the volume of the solid? (g = 1Oms2)

Which of the following has the same unit as the moment of a force?

The diagram above represents the trajectory of a projectile with an initial velocity U. Calculate the time taken to reach the maximum height. (Take g as acce...

A body accelerates uniformly from rest at the rate of 3 ms-1 for 8 seconds. Calculate the distance covered by the body during the acceleration.

Which of the following will reduce the frequency of oscillation of a simple pendulum?

Which of the following is a scalar quantity?

Which of the following statements about solid friction is/are correct? I. Friction depends on the nature of the surfaces in contact II. Friction depends on t...