Question

a truck is moving towards east with the velocity of 20 metre per second and another is moving toward the west with the velocity of 15 metre per second calculate the relative velocity If those trucks move at the same time from the same place calculate the distance between them after 2 minutes ​

Answer 1

(a) The relative velocity If those trucks move at the same time from the same place is 35 m/s.

(b) The distance between them after 2 minutes ​ is 4,200 m.

Relative velocity of the two trucks

The relative velocity of the two truck is calculated as follows;

Vr = 20 m/s - (-15 m/s)

Vr = 20 m/s + 15 m/s

Vr = 35 m/s

Distance between the object after 2 mins

d = Vr(t)

d = 35(2 x 60 s)

d = 4,200 m

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