Angle of banking for a vehicle speed of 10ms^-1 for a radius of curvature10m is (assume g = 10ms^-2).

Centrifugal force is a

Name the physical quantity which undergoes a change with time in a periodic motion .

The force which continuously deflects a particle from its straight line path and makes it travel along a circular path is called

An imaginary co-ordinate system which is either at rest or in uniform motion and where Newton’s laws are valid is called an

A car is racing on a circular track of 180m radius with a speed of 32 ms^-1. What should be the banking angle of the road to avoid chances of skidding of the vehicle at this speed without taking into consideration the friction between the tyre and  the road?

A stone of mass 'm' tied to a string of length is rotated in a circle with the other end of the string as the centre. The speed of the stone is 'v'. If the string breaks, the stone will

A particle is moving in a circle of radius R with constant speed v. If radius is doubled, then its centripetal force to keep the same speed gets.

Angular velocity of minute hand of a clock is

A cosmonaut is orbiting earth in a spacecraft at an altitude h= 630km with a speed of 8kms^-1. If the radius of the earth is 6400 km, the acceleration of the cosmonaut is