A man is standing on a platform moving up and down as a `S.H.M.` will there be any change in his weight as recorded by a weighing machine on the platform ?

A person is standing on a platform which executing vertical S.H.M. his weight be largest at

A man of mass m=2kg is standing on a platform of mass M=5kg , then at any instant.

A man of maas m is standing on a platform of maas M kept on smooth ice. If the man starts moving on the platform with a speed v relative to the platform with what velcity relative to the ice does the platform recoil?

A boy of mass m is standing on a platform of M kept on smooth floor. If the body starts moving on the platform with a speed v_(0) relative to the platform , with what velocity to the floor does the platform recoil ?

A person normally weighing 50 kg stands on a massless platform which oscillates up and down harmonically at a frequency of 2.0s^(-1) and an amplitude 5.0 cm. A weighing machine on the platform gives the persons wieght against time. (a) Will there be any change in weight of the body, during the oscillation? (b) If answer to part (a) is yes, what will be the maximum and minimum reading in the machine and at which position?

A perosn normally weighting 50kg stands on a massless platform which oscillates up and down harmonically at a frequency of 2.0s^(-1) and an amplitude 5.0 cm. A weighing machine on the platform gives the persons weight against time. (a) Will there be any in weight of body , during the oscillation? (b) If answer to part (a) is yes, what will be the maximum and minimum readin in the machine and at which position?

When a lift is moving up with a uniform speed of 1 m/s. the weight of a man recorded bby a weighing machine in the lift is 70 kg . If the lift starts moving down with a uniform speed of 2 m/s, the weight of the man recorded by the weighing machine will be

A man of mass m_1 is standing on a platform of mass m_2 kept on a smooth horizontal surface. The man starts moving on the platform with a velocity v_r relative to the platform. Find the recoil velocity of platform.

A man is standing on a weighing machine placed in a lift. When stationary his weight is recorded as 40 kg . If the lift is accelerated upwards with an acceleration of 2m//s^(2) , then the weight recorded in the machine will be (g=10m//s^(2))

A boy is standing on a weighing machine placed on a horizontal platform. The reading of weighing machine is 70 kg. Using a suitable mechanism the platform is made to execute harmonic vibrations with a frequency of 1 vibration per second. Calculate the maximum and minimum force exerted on the boy if the amplitude of vibration of platform is 6 cm.