Question

Diego is playing basketball. While running at 7 km/h toward a basketball hoop, he throws the ball at the net. The ball travels at 20 km/h.

What is the speed of the ball relative to the net?

Answer 1

27k/m

Explanation:

EDGE ( i saw another lady comment the correct answer )

Answer 2

27 km/h (｡◝‿◜｡)

Explanation:

Let's take the direction in which Diego is travelling as positive direction. Therefore:

- Diego is travelling at a velocity of +7 km/h, towards the net

- The ball travels at +20 km/h towards the net, with respect to Diego's reference system

Therefore, the velocity of the ball with respect to the net reference system is equal to the sum of the two velocities: