Aball rolls over the edge of a platform with a horizontal velocity of magnitude v. the height of the platform is 1.6 m and the horizontal range of the ball from the base of the platform is 20 m. what is the magnitude of v if air resistance is negligibly small?

v = 35.08 m/s

Explanation:

A ball rolls over the edge of a platform with a horizontal velocity of magnitude v.

The horizontal range of the ball from the base of the platform is, x = 20 m

Horizontal velocity,

..............(1)

Vertical distance, y = 1.6 m

Vertical distance is given by :

u = 0

t = 0.57 seconds

Put the value of t in equation (1) as :

v = 35.08 m/s

So, the horizontal velocity of the ball is 35.08 m/s. Hence, this is the required solution.

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete