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 from PART66Online
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.
R
Rajaram12 asked · 8 Jan 2014
how?
Community Comments (4)
P
PART66Online
9 Jan 2014
F = ma
F = 1000/9.81 * 3
F = 305.8 N
F = 1000/9.81 * 3
F = 305.8 N
P
PRABIN
11 Jan 2014
why u divided 9.81?
P
PART66Online
11 Jan 2014
Because in question is given weight but in formula we must use mass.
Weight = mass * G.
G = 9.81
Weight = mass * G.
G = 9.81
M
mujahidi1
19 Dec 2014
G = gravity
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