How much work is done on a body of mass 1 kg whirling on a circular path of radius 5m?

How much work is done in moving a charge of 5C between two points in a circuit having a potential difference of 10 V?

Circular foot path of 2 metres is constructed at the rate of Rs. 20 per m2 around a circular park of radius 1500 m. Find the total cost of construction of the foot path.

Find the flux density of the magnetic field to cause 62.5 eV electron to move in a circular path of radius 5 cm. Given m = 9.1 xx 10^-31 kg, e = 1.6 xx 10^-19 C

A stone of mass 0.25 kg tied to the end of a string is whirled round in a circle of radius 1.5 m with a speed of 40 rev.//min in a horizontal plane. What is the tension in the string ? What is the maximum speed with which the stone can be whirled around if the string can withstand a maximum tension of 200 N ?

Find the flux density of the magnetic field to cause 62.5eV electron to move in a circular path of the radius 5cm. Given m = 9.1xx10^(-31) ,kg, e = 1.6xx10^(-19)C

A constant retarding force of 50 N is applied to a body of mass 20 kg moving initially with a speed of 15m s^-1 . How long does the body take to stop ?