What is the weight of a body of mass 20kg at the equator ?(g=9.78 m/s^2)

What is the weight of a body of mass 100 kg at the south pole ? (g=9.832 m/s^2)

What should be the angular speed of earth in radian/second so that a body of 5 kg weights zero at the equator? [Take g = 10 m//s^2 and radius of earth = 6400 km]

How much energy will be needed for a body of mass 100kg to escape from the earth- (g = 10m//S^(2) and radius of earth = 6.4 xx 10^(6) m)

Calculate the work done to take an object of mass 20 kg to a height of 10 m. (g = 9.8 m/s2)

Solve the following example : A body of volume 100 cm^3 is immersed completely in water. Find the weight of the water displaced by the body. [g = 9.8 m//s^2, rho(water) = 10^3 kg//m^3]

Fill in the blanks with appropriate words and write the completed statements: The kinetic energy of a body of mass 2 kg moving with a velocity of 1m/s is ………J.

A body has moment of inertia about its axis of rotation as 3 kg m^2 and angular velocity 3 rad/s. The kinetic energy of rotating body is same as that of a body of mass 27 kg moving with a speed of

Choose the correct options A body of mass 2 kg, travelling at 4 m//s makes a head-on collision with a body of mass 1 kg travelling in the opposite direction with a velocity of 2 m//s , the velocities of the two bodies after collision are____ A. v 1 = 6 m / s , v 2 = 6 m / s B. v 1 = 0 , v 2 = 0 C. v 1 = 0 m / s , v 2 = 6 m / s D. v 1 = 6 m / s ,v 2 =0

A body is released from the top of a tower of height 50 m. Find the velocity with which the body hits the ground. (g=9.8 m/s^2)