Advertisements
Advertisements
Question
A truck rolls down a hill with constant acceleration after starting from rest. It travels a distance of 100 m in 10 s. find its acceleration. Find the force acting on it, if its mass is 5 metric tons. (tonne)
Advertisements
Solution
Initial velocity of the truck = 0 ms-1
Distance covered by truck = 100 m
Time taken to cover this distance = 10 s.
We know Distance covered would be S = ut + 1/2 at2.
100 =1/2 Xa X100
a= 2 ms-2.
Mass of truck = 5 metric tons = 5000 kg.
Force acted on truck = mass X acceleration
Force = 5000 X 2 = 10000 N.
APPEARS IN
RELATED QUESTIONS
What do you understand by the term force due to gravity ?
What do you understand by the term weight?
A man sits in a machine which generates acceleration five times more than the acceleration due to gravity. If the mass of the man is 80 kg, what is his weight? Take g = 10 ms−2.
A man weigh 800 N at the equator. How does the weight of man change at the following place?
At poles
How is weight affected in the following case, when initially the body is weighed in Delhi with a spring balance?
Body is taken to Moscow.
How is weight affected in the following case, when initially the body is weighed in Delhi with a spring balance?
Body is taken to sea level.
The value of G is extremely____________.
Where do you weigh more: at the poles or at equator?
In the below figure, a block of weight 20 N is hanging from a rigid support by a string. Find:
The force exerted by string on the block.
