Question

On their way to the World Baseball Championships, the Nobles baseball team is warming up on the plane with a little batting practice. The plane is traveling 250 km/h[E] relative to the ground. The pitcher is at the front of the plane and the batter is at the back of the plane. The pitcher throws the baseball at a speed of 100 km/h. The batter swings the bat at 75 km/h. The batter then hits the ball making it travel 175 km/h. [A/3 marks] a. What is the velocity of the ball relative to the ground when the piteher throws it?

Answer 1

The velocity of the ball relative to the ground when the pitcher throws it is 350 km/h, calculated by adding the ball's velocity relative to the plane (100 km/h) and the plane's velocity relative to the ground (250 km/h).

Step-by-step explanation:

The question asks what the velocity of the ball relative to the ground is when the pitcher throws it. To find the velocity of the ball relative to the ground, we add the velocity of the ball relative to the plane to the velocity of the plane relative to the ground. The pitcher throws the ball at 100 km/h, and the plane is traveling at 250 km/h. Since both velocities are in the same direction, we add them together to get the ball's velocity relative to the ground.

Velocity of ball relative to ground = Velocity of ball relative to plane + Velocity of plane relative to ground
Velocity of ball relative to ground = 100 km/h + 250 km/h
Velocity of ball relative to ground = 350 km/h
Therefore, the ball is moving at 350 km/h relative to the ground when thrown by the pitcher.