Advertisements
Advertisements
प्रश्न
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
उत्तर
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
संबंधित प्रश्न
When a shot is fired from a gun, the gun is recoiled. Explain.
In the Figure a block of weight 15 N is hanging from a rigid support by a string. What force is exerted by (a) a block on the string and (b) a string on the block? Name and show them in the diagram.
What do you understand by the term force due to gravity ?
The weight of a body on Earth is 98 N, where acceleration due to gravity is 9.8 m s-2. What will be its (a) mass and (b) weight on the Moon, where acceleration due to gravity is 1.6 m s-2?
What is the (a) force of gravity and (b) weight of a block of mass 10.5 kg ? Take g = 10 ms-2 .
State two important characteristics of weight
Why is gold not weighed by a spring balance?
A man weigh 800 N at the equator. How does the weight of man change at the following place?
100 km up in space
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.
Where do you weigh more: at the poles or at equator?
