The height and width of each step of a staircase are 10 cm

Last updated: 6/12/2023

The height and width of each step of a staircase are 10 cm and 20 cm respectively A ball rolls off the top of a stair with horizontal velocity V and hits the 4th step The magnitude of V is g 10ms 2 A 2ms 1 B 2 2ms 1 C 1 5 5ms 1 D 7 3ms