Question

A platform is pulled with horizontal acceleration a. A particle is
projected from the platform at an angle with the horizontal
with respect to the platform as shown in figure. The value of
tano such that particle again come to the starting point on the
platform is
(a = 5 m s-2 and g = 10 m s-2)

Answer 1

Answer:

A sphere of mass m and radius R rolls without sliding on a horizontal surface. It collides with a light spring of stiffness K with a kinetic energy E. If the surface (AB) under the spring is smooth and E = 7J and K = 10 N/m, find the maximum compression of the spring.A sphere of mass m and radius R rolls without sliding on a horizontal surface. It collides with a light spring of stiffness K with a kinetic energy E. If the surface (AB) under the spring is smooth and E = 7J and K = 10 N/m, find the maximum compression of the spring.