Question

A ball is thrown horizontally from a table at a speed of 2ms^-1. The ball falls for 3 seconds.{Acceleration due to gravity, g= 10ms^-1 ?

Determine:
a) The horizontal component of the ball's velocity at time 3 seconds
b) The vertical component of the ball's velocity at time 3 seconds

Answer 1

a. `"2 m/s"`

b. `"30 m/s"`

Explanation:

a. Horizontal component of velocity will be `"2 m/s"` because there is no acceleration in this direction

b. Along vertical

Initial velocity (`u) = "0 m/s"`

Velocity after 3 seconds `= v`

`v = u + at`

`v = "0 m/s" + ("10 m/s"^2 × "3 s") = "30 m/s"`