a car is moving foward at 15.7m/s. a person in the bus throws a ball horizontally toward the front of the car at 17.5 m/s from your perspective as an observer outside the car the tennis ball appears to moving at what velocity?
15.7 + 17.5
To determine the velocity of the tennis ball as an observer outside the car, we need to consider the concept of relative velocity.
Relative velocity is the velocity of an object in relation to another object. In this case, we need to consider the velocity of the tennis ball relative to the observer outside the car.
Since the ball is thrown horizontally towards the front of the car, its vertical velocity is not affected by the car's motion. Thus, the vertical component of the ball's velocity remains 0 m/s.
To find the horizontal component of the ball's velocity relative to the observer, we need to subtract the car's velocity from the ball's velocity.
Given:
Car velocity (v_car) = 15.7 m/s (forward)
Ball velocity (v_ball) = 17.5 m/s (forward)
Horizontal component of ball velocity (v_ball_horizontal) = v_ball - v_car
v_ball_horizontal = 17.5 m/s - 15.7 m/s
v_ball_horizontal = 1.8 m/s
Therefore, as an observer outside the car, the tennis ball appears to be moving forward at a velocity of 1.8 m/s.