A particle is thrown up vertically with a speed `v_(1)` in air . If takes time `t_(1)` in upward journey and `t_(2)(gt t_(1))` in the downward journey and returns to the starting point with a speed `v_(2)`. Then:-

A particle is thrown in vertically upward direction, the correct graph of speed (v) to time (1) is ......

A small stone of mass m is thrown vertically upwards with an initially speed v . If the air resistance at speed v is m k v^(2) , where k is a constant, show that the strone returns to the starting point with a speed v (1 + (kv^(2))/(g))^(-1//2)

A ball is thrown vertically with some velocity . A constant air resistance acts. If the time of ascent is t_(1) and that of descent is t_(2) , then

A particle is thrown vertically upwards with a velocity v . It returns to the ground in time T. which of the following graphs correctly represents the motion ?

A particle is thrown vertically upwards with a velocity v . It returns to the ground in time T. which of the following graphs correctly represents the motion ?

In the following problems the air resistance is constant (air resistance always opposes the motion). (a) A ball is thrown vertically upward. If time of ascent is t_(1) and time of descent is t_(2) , which time is greater ? (b) A ball is thrown vertically upward with speed u and on returning to the ground, its speed is v_(0) . Which speed is greater ? (c) Two balls A and B (m_(A) gt m_(B)) are thrown vertically upward with same speed. Which ball A or B (heavier or lighter) wil attain greater height ?

A particle is thrown vertically upwards. The correct graph between its speed (v) and time (t) is given by (neglecting air resistance)

A particle thrown up vertically reaches its highest point in time t_(1) and returns to the ground in a further time t_(2) . The air resistace exerts a constant force on the particle opposite to its direction of motion.

A particle thrown up vertically reaches its highest point in time t_(1) and returns to the ground in further time t_(2) . The air resistance exerts a constant force on the particle opposite to its direction of motion