For a car weighing 1000 N, what force would be required to accelerate the car to 3 ms-2
- 150.2 N.
- 305.8 N.
- 610.5 N.
Explanation
First find the car's mass from its weight: m = W / g = 1000 / 9.81 = 101.9 kg. Then F = ma = 101.9 x 3 = 305.8 N. The common error is to use the 1000 N weight directly as mass, which ignores that weight is mass times gravitational acceleration.
James Leonard asking:
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Community Comments (1)
S
samed1997 Posts: 4 29.04.2017 / 16:33
F=m*a m=1000/9.81=102Kg F=102*3= 306 N
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