Question

What is the speed of the ball at point B? (Physics)

Answer 1

See below

Explanation:

`(T+U)_A = (T+U)_B = 25`

`U _B = 0 implies T_B = 25 = 1/2 m v^2`

`m = 2`

`"speed " = abs v = sqrt((2*25)/2) = 5" m/s"`