If a bat with a mass of 5 kg and acceleration of 2 m/s2 hits a ball whose mass is 0.5 kg in the forward direction, what is the reaction force of the ball on the bat?
10 N, forward
10 N, backward
0.5 N, upward
0 N, forward
Is it the first one?
hello! just took the test, the answer is
10 N, backward
hope this helps~
Yes, you are correct. The reaction force of the ball on the bat is 10 N in the forward direction.
To find the reaction force of the ball on the bat, we can use Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. In this case, the action is the bat hitting the ball, and the reaction is the force exerted by the ball on the bat.
To calculate the reaction force, we can use the equation:
Reaction Force (F_reaction) = mass of the ball (m_ball) Ć acceleration of the ball (a_ball)
Given:
mass of the ball (m_ball) = 0.5 kg
acceleration of the ball (a_ball) = 2 m/sĀ²
Plugging in the values, we get:
F_reaction = 0.5 kg Ć 2 m/sĀ²
= 1 N
Since the question asks for the reaction force of the ball on the bat, the correct answer is:
1 N, forward
Therefore, the first option, "10 N, forward," is incorrect.