Q. 40 B4.3( 12 Votes )

An unloaded truck weighing 2000 kg has a maximum acceleration of 0.5 m/s2. What is the maximum acceleration when it is carrying a load of 2000 kg?

Answer :

For unloaded truck,

Mass, m = 2000 kg


a = 0.5 m/s2


Now, using F = ma


F = 2000 x 0.5


= 1000 N


For loaded truck,


m = 2000 + 2000 = 4000 kg


F = 1000 N (remains unchanged)


Again,


F = ma


a = F/m


= 1000/4000


= 0.25 m/s2


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