Physics

An object of mass 50 Kg accelerates from a velocity of 2 m/s to the velocity of 10 m/s in the same direction. what is the impulse provided to cause this acceleration?

Which quantity is measured in Newton Second (Ns)?

The diagram shows an object of weight W and an object of weight Z balanced in a uniform meter rule. Choose the correct answer.

The diagram show four objects A,B, C and D. The centre of mass M of each object is marked on the diagrams.

Which object is not in equilibrium?

Passengers are not allowed to stand on the upper deck of double decker buses. Why?

A skier walks from the bottom of a ski slope to the top and gains 10000 j of gravitational potential energy. She skis down the slope. At the bottom of the slope, her kinetic energy is 2000 J. How much energy is dissipated in overcoming friction and air resistance as the skier moves down the slope?

Which energy source is one that is used to boil water to make steam in power station?

Which quantities are measured in the same unit?

Which is a non renewal energy resource?

Which source of energy involves the splitting of heavy atoms?