Abowling ball of mass 5 kg hits a wall going 7 m/s and rebounds at a speed of 2 m/s. what was the impulse
4 answers
Question:
Abowling ball of mass 5 kg hits a wall going 7 m/s and rebounds at a speed of 2 m/s. what was the impulse applied to the bowling ball
Answers
The impulse applied to the bowling ball is 45 kg m/s
Explanation :
Given that,
Mass of the ball, m = 5 kg
Initial velocity of the ball, u = 7 m/s
Final speed of the ball, v = 2 m/s
We know that the impulse applied to an object is equal to the change in momentum.
[tex]J=\Delta p[/tex]
[tex]J=p_f-p_i[/tex]
[tex]J=m(v-u)[/tex]
[tex]J=5\ kg(2\ m/s-7\ m/s)[/tex]
J = -25 kgm/s
Hence, this is the required solution.
think its the third option
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