A 7 tonne truck initially moving at a velocity of 50m / s accelerates to 110m / s in 3 seconds Calculate the force on the truck that causes the velocity to change
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140 kN force on the 7 tonne truck that causes the velocity to change from 50 m/s to 110 m/s in 3 secs
Explanation:
Force = Mass * acceleration
=> F = m a
a = dv/dt
=> F = M dv/dt
dv/dt = ( 110 - 50)/3 = 20 m/s²
m = 7 tonne = 7000 kg
=> F = 7000 * 20
=> F = 140,000 N
=> F = 140 kN
140 kN force on the truck that causes the velocity to change
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