Question

a truck starts from rest and rolls down a hill with a constant acceleration it travels a distance of 480 into 20 seconds find its acceleration find the force acting on it if its mass is 7 tonnes.
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Answer 1

Answer:

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Answer 2

AnsWer:-

The acceleration of the truck is 2m/s².

The force acting on the truck is 14,000 Newton.

Step-by-step explanation:

Given:-

• Initial velocity of the truck (u) = 0m/s.
• Distance travelled by the truck = 400m.
• Mass of the truck = 7 tonnes.

Need to find:-

• Accerlation of the truck.
• force acting on the truck.

EXPLANATION:-

As we know that,

S = ut+1/2at²

Putting values in this formula,

We get;

400 = 0×20+1/2×a×20²

400 = 20+1/2a×400

400 = a×200

400/200 = a

a = 2m/s²

Now,

Calculating force acting on the truck:-

As we know that,

F = m×a

Putting values in this formula,

We get;

f = 7×1000×2

=> 14,000 Newton

Hence,the acceleration of the truck is 2m/s² and force acting on the truck is 14,000 Newton.