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Check my work on Average Force!

  • Thread starter Hannah1
  • Start date
  • #1
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A 1,662 kg car goes from 14 m/s to 29 m/s in 19 secs.

What is the average force acting upon it? Write your answer to two decimal places.



Attempt:

Mass = m = 1,662 kg
Initial Velocity = Vi = 14 m/s
Final Velocity = Vf = 29 m/s
Time = t = 19 secs
Acceleration = a = Δvelocity/time = (Vf - Vi)/t = 15/19 = 0.7894736842105263 m/s2
Force = F = m x a = 1,662 x 0.7894736842105263 = 1312.105263157895 N


Answer:

Average Force = 1312.11 N

Is the answer correct?
 

Answers and Replies

  • #2
collinsmark
Homework Helper
Gold Member
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A 1,662 kg car goes from 14 m/s to 29 m/s in 19 secs.

What is the average force acting upon it? Write your answer to two decimal places.



Attempt:

Mass = m = 1,662 kg
Initial Velocity = Vi = 14 m/s
Final Velocity = Vf = 29 m/s
Time = t = 19 secs
Acceleration = a = Δvelocity/time = (Vf - Vi)/t = 15/19 = 0.7894736842105263 m/s2
Force = F = m x a = 1,662 x 0.7894736842105263 = 1312.105263157895 N


Answer:

Average Force = 1312.11 N

Is the answer correct?
'Looks correct to me. :approve:
 
  • #3
47
0
'Looks correct to me. :approve:
Thank you for your reply!! :smile:
 

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