Physics, asked by IIwitchyprincessII, 9 hours ago

A truck starting from rest & rolls down from hill with constant acceleration. It travels a distance of 400m in 20s . Find the acceleration & also force acting on the mass of 7 metric tons.

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Answered by satyamrajput83317
3

Answer:

metric ton = 1000 kg

7 metric ton = 7 × 1000 = 7000 kg

∴ Mass (m) = 7000 kg

We know the formula

s=ut+12at2

Substitute the given parameters in the above equation

400 = 0 + ½ a (20)2

400 = a × 400/2

400 = 200 × a

a = 2 m/s2

Acceleration is equal to 2 m/s2

Force (F) = Mass (m) × Acceleration (a)

Substitute the values of mass and acceleration in the above equation, we get

F = 7000 × 2

F = 14000 N

Answer

The force acting on it if its mass is 7 metric tons is 14000 N

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