Motion in A Str...

A body thrown up with a velocity of 98 m/s reaches a point P in its path 7 second after projection. Since its projection it comes back to the same position after:

A particle is projected vertically up and another is let fall to meet at the same instant. If they have velocities equal in magnitude when they meet, the distances travelled by them are in the ratio

A ball of mass $$100$$ gm is projected vertically upwards from the ground with a velocity of $$49$$ $$m/s$$. At the same time another identical ball is dropped from a height of $$98$$ m. After some time the two bodies collide. When they collide, their velocities are (Given $$g=9.8\; m/s^2$$)

A body projected up with a speed $$u$$ took $$T$$ seconds to reach the maximum height $$H$$. Pick out the correct statement

From the top of a tower $$36$$ m high, a body is dropped and at the same time another body is projected vertically upward from the ground. If they meet midway, find the initial velocity of the projected body and its velocity when the two bodies come together

A rocket is fired and ascends with constant vertical acceleration of $$10m/s^{2}$$ for 1 minute. Its fuel is exhausted and it continues as a free particle.The maximum altitude reached is ($$g=10m/s^{2}$$)

A stone projected vertically up from the ground reaches a height $$y$$ in its path at $$t_{1}$$ seconds and after further $$t_{2}$$ seconds reaches the ground. The height $$y$$ is equal to

A paper weight is dropped from the roof of a block of multistorey flats, each storey being $$3$$ meters high. It passes the ceiling of the $$20^{th}$$ storey at $$30$$ $$m/s$$. If $$g = 10  m/ s^{2}$$, how many storey does the flat have?

A stone is dropped from a height $$h$$. Simultaneously another stone is thrown up from the ground which reaches the height $$4h$$. The two stones cross each other after a time:-

A body is thrown vertically up to reach its maximum height in $$t$$ seconds. The total time from the time of projection to reach a point at half of its maximum height while returning ( in seconds ) is