~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?~
A. The robot fires the ball forward with a speed of 7 m/s.
B. The robot fires the ball backward with a speed of 7 m/s.
C. The robot fires the ball backward with a speed of 2 m/s.
D. The robot fires the ball forward with a speed of 2 m/s.
(help me with my other questions too please <3)
~Which would result in a judge who is sitting beside the testing ground observing the tennis ball having a speed of 7 m/s?~
A. The robot fires the ball forward with a speed of 7 m/s.
B. The robot fires the ball backward with a speed of 7 m/s.
C. The robot fires the ball backward with a speed of 2 m/s.
D. The robot fires the ball forward with a speed of 2 m/s.
(help me with my other questions too please <3)
Answers & Comments
Answer:
Based on the information provided, we can use the concept of relative velocity to determine the answer.
The judge is sitting beside the testing ground and observing the tennis ball. This means that the judge is stationary with respect to the ground.
If the robot fires the ball forward with a speed of 7 m/s, then the relative velocity of the ball with respect to the judge would be:
Relative velocity = Velocity of ball - Velocity of judge
Relative velocity = 7 m/s - 0 m/s
Relative velocity = 7 m/s
Therefore, the ball would be observed by the judge to have a speed of 7 m/s.
So, the answer is A. The robot fires the ball forward with a speed of 7 m/s.
Hope that helps! Let me know if you have any other questions.
Answer:
Basim's robotics team builds a robot that travels at 9 m/s and can fire a tennis ball at a target.
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?
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 backward with a speed of 2 m/s.
option D