Question

1 point

A truck starts from rest and rolls down a hill with constant acceleration. It travels a distance of 400m in 20s. The acceleration is

​

Answer 1

Answer:

Given data:

Mass of stone(m)=7000 kg

Distance(S)=400 meter

Time(t)=20 second

1) We have to find the acceleration of the truck

So from the equation of motion S=ut+

2

1

a×t

2

, whereu=0

S=

2

1

a×t

2

a=

t

2

2×S

=

20×20

2×400

=2

sec

2

m

2) Force acting on truck

So,from newton's 2

nd

law of motion

F

=ma=7000×2=14000N=14kN

Answer 2

Answer:

Distance travelled by truck = 400m

Time taken = 20sec

Acceleration = Velocity/speed

= Distance/time

= 400/20m/sec

= 20m/sec. ans.

Here is your answer mate❤️❤️