A ball of mass 100 g is dropped from a height h=10 cm on a platform fixed at the top of a vertical spring (as shown in figure). The ball stays on the platform and the platform is depressed by a distance `h/2` . The spring constant is `Nm^(-1)` . (Use `g=10 ms^(-2)` )
Platform

A ball of mass m is droppped from a height h on a platform fixed at the top of a vertical spring. The platform is depressed by a distance x . What is the spring constant K ?

A particle of mass m=1kg is dropped from a height h=40cm on a light horizontal platform fixed to one end of an elastic spring, the other being fixed to a base, as shown in the diagram. The particle collides with the platform and sticks to it. As a result, the spring is compressed by an amount x=10cm . What is the force constant of the spring? (Take g=10ms^(-2) )

A block of 200 g mass is dropped from a height of 2 m on to a spring and compress the spring to a distance of 50 cm. The force constant of the spring is

A solid ball of mass m is made to fail from a height H on a pan suspended through a spring of spring constant K as shown in figure. If the does not rebound and the pan is massless, then amplitude of oscillation is

A body is of mass 1 kg falls freely from a height of 100 m. on a platform of mass 3 kg which is mounted on a spring having spring constant k=1.25 xx 10 ^6 N//m .The body sticks to the platform and the spring's maximum compression is found to be x .Given that g=10 ms ^-2 ,the value of x will be close to :

A block of mass m = 2.0 kg is dropped from height h = 40 cm onto a spring of spring constant k = 1960 N//s . Find the maximum distance through which the spring is compressed. Take g = 9.8 m//s^(2)

A block of mass m falls from a height h onto the end of a platform as shown in figure. The springis initially unstreched and the mass of the platform on be neglected. Assuming if there is no loss of energy, the maximum elongation of the spring is

A block of mass m is kept on a platform which starts from rest with constant acceleration g/4 upward, as shown in the figure. Work done by normal reaction on block in time t is: