A stone was thrown vertically upwards from the ground with a velocity of 50 m/sec. After 5 seconds another stone was thrown vertically upwards from the same place. If both the stones strike the ground at the same time, then the velocity with which the second stone was thrown should be (Assume g = 10 m/sec2)______________________?

Related Mcqs:

If a projectile is fired with an initial velocity of 10 m/sec at an angle of 60° to the horizontal, its horizontal and vertical velocity at the highest point of trajectory are___________________?

A. 0 and 5 m/sec B. 5 m/sec and 0 C. 5 V3 m/sec and 0 D. 5 and 5V3 m/sec...

The ratio of unit of force in gravitational system to that in absolute system is__________________?

A. 1 B. g C. 1/g D. none of the above where ‘g’ is acceleration due to gravity...

A system of copianar forces acting on a rigid body can be reduced to________________?

A. one force only B. one couple only C. one force and one couple only D. none of the above...

The condition of equilibrium for any system of forces in a plane is____________________?

A. that polygon of forces must close B. that resultant couple must be zero C. both (A) and (B) D. none of the above...

A quantity whose dimensions are M2L2 T3 could be the product of_________________?

A. force and pressure B. mass and power C. energy and velocity D. force and velocity...