Basim’s robotics team builds a robot that travels at 9 m/s and can fire a tennis ball at a target. which would result in a judge who is sitting beside the testing ground observing the tennis ball having a speed of 7 m/s? the robot fires the ball forward with a speed of 7 m/s. the robot fires the ball backward with a speed of 7 m/s. the robot fires the ball backward with a speed of 2 m/s. the robot fires the ball forward with a speed of 2 m/s.

The correct answer is "the robot fires the ball backward with a speed of 2 m/s. "

Explanation:

In the given problem, a robot that travels at 9 m/s and can fire a tennis ball at a target.

A judge who is sitting beside the testing ground observing the tennis ball having a speed of 7 m/s.  

Calculate the net velocity of the tennis ball.

The negative sign shows that the robot fires the ball backward with a speed of 2 m/s.

need to see circuit to get time constant

this is poiselle's equation from fluid mechanic in physics. mech eng