A cart is moving horizontally along a straight line with constant speed 30 m/s. A projectile is to be fired from the moving cart in such a way that it will return to the cart after the cart has moved 120m. At what speed (relative to the cart, in m/s) must the projectile be fired ? (Take `g=10m//s^2`)

A car is moving horizontally along a straight line with a unifrom velocity of 25 m s^-1 . A projectile is to be fired from this car in such a way that it will return to it after it has moved 100 m . The speed of the projection must be.

A car is moving horizontally along a straight line with a unifrom velocity of 25 m s^-1 . A projectile is to be fired from this car in such a way that it will return to it after it has moved 100 m . The speed of the projection must be.

A cart is moving horizontally along a straight line with constant speed 30 ms^-1. A particle is to be fired vertically upwards from the moving cart in such a way that it returns to the cart at the same point from where it was projected after the cart has moved 80 m. At what speed (relative to the cart) must the projectile be fired? (Take g = 10 ms^-2 )

A cart is moving horizontally along a straight line with constant speed 30 ms^-1. A particle is to be fired vertically upwards from the moving cart in such a way that it returns to the cart at the same point from where it was projected after the cart has moved 80 m. At what speed (relative to the cart) must the projectile be fired? (Take g = 10 ms^-2 )

A cart is moving horizontally along a straight line with constant speed 30 ms^-1. A particle is to be fired vertically upwards from the moving cart in such a way that it returns to the cart at the same point from where it was projected after the cart has moved 80 m. At what speed (relative to the cart) must the projectile be fired? (Take g = 10 ms^-2 )

A boy standing on a moving truck throws a projectile such that he is able to catch it back after the truck has moved 100 m. If the truck is moving horizontally along a straight line with a constant speed 30 m/s, at what speed (relative to the truck) must the projectile is thrown. (Assume, g = 10 m//s^2 )