In: Physics
Find the acceleration of a 2500 kg truck that has a force acted on by its wheels of 7kN. A force of friction of 1500 N is also acting on the truck.
Answer : Given problem , mass of the truck (m) = 2500 kg
force acting on the wheels (f1) = 7 kN = 7000 N
This force say acting on forward direction.
frictional force acting on the truck (f2) =1500 N
This frictional force oppose the wheels force.So the resultant force F = f1 - f2
F = 7000 -1500 = 5500 N
We know that force F = ma
Where a is acceleration, a = F/m
a = 5500/2500 = 2.2 m/s^2
Therefore acceleration of the truck , a = 2.2 m/s^2