At `t=0`, an arrow is fired vertically upwards with a speed of `100 m s^(-1)`. A second arrow is fired vertically upwads with the same speed at `t=5 s`. Then .

A pebble is thrown vertically upwards with a speed of 20 m s^(-1) . How high will it be after 2 s? (Take g = 10 m s^(-2) )

A projectile is fired vertically upwards with an initial velocity u . After an interval of T seconds a second projectile is fired vertically upwards, also with initial velocity u .

A particle is fired vertically upward with a speed of 15 kms^-1 . With what speed will it move in interstellar space. Assume only earth's gravitational field.

A particle is fired vertically upward with a speed of 15 kms^-1 . With what speed will it move in interstellar space. Assume only earth's gravitational field.

A cannon ball is fired with a velocity of 200 ms^(-1) at an angle of 60^(@) with the horizontal. At the highest point of its flight it explodes into 3 equal fragments. One fragment is going vertically upwards with a velocity of 100 m//s and second going vertically downwards with a velocity of 100 ms^(-1) the third fragment will be moving with a velocity of

A 5 kg body is fired vertically up with a speed of 200 m/s. Just before it hits the ground, its speed is 150 m/s. Over the entire trip,