Question

A truck on a flat road accelerates from rest at a constant rate and covers a distance of 100 m in 7 s.
The mass of the truck is 800 kg.

What is the acceleration of the truck?  m/s²

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What is the net force on the truck?  N

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The truck is now loaded with heavy equipment and has a NEW total mass of 1200 kg.
If the same net force is applied to the car as calculated above, then what would be the new acceleration of the truck?  m/s²

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With this new acceleration, how much time would it take the (heavier) truck to travel 100 m starting from rest?  s

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What would be the speed of the (heavier) truck when it reaches this point?  m/s

Answer 1

Provided values : i Info d = loom t = 7 s U- o m = Bookg Using da ut + t at ² 100 = 0 & a (7² a = 200 – 4.08 a= 4.08 mis2 F = ma 800x4.08 N F = 3264 N - 3264 New acceleration a' a = 2.72 m/s And 100 = 0+1x2.72 x t² I ť= 8.575 o'= " + dit = 0 + 2.72 X8.57 T1'23.31 mis