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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 1 > Chapter 5 - Relative Motion > A cart is moving horizontally along a straight line with constant speed 30ms^−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 80m. At what speed (relative to the cart) must the projectile be fired? (Take g=10ms^−2)

A cart is moving horizontally along a straight line with constant speed 30ms^−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 80m. At what speed (relative to the cart) must the projectile be fired? (Take g=10ms^−2)

B B along BC C along CD and D along DA. At which time will the particles meet each other ? C and D are situated at the vertices of a rectangle of sides d at t = 0. Each of the particle moves with constant speed v. A always has its velocity along AB Four particles A