Question
A sports car of mass 1000 kg can accelerate from rest to 27 m/s in 7.0 s. what is the average forward force on the car?
Asked by: USER4398
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119 Answers
Answer (119)
The average force on the car=3857 N
Explanation:
mass of car= 1000 kg
initial velocity= Vi=0
Final velocity= Vf=27 m/s
time= t= 7 s
using the kinematic equation,
Vf= Vi + at
27=0+a (7)
a=3.857 m/s²
Now the force is given by F= m a
F=1000 (3.857)
F=3857 N