For the rest 3 km
Bholu need to run in 5 minutes so
He need to 3 × 1000 / 5 × 60 m/s
3000/ 300 = 10 m/s
So , his speed should be 1 m/s to reach in 5 minute
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ANSWER

EXPLANATION
Parameters given:
Mass of car, mc = 1103 kg
Mass of truck, mt = 4919 kg
Initial velocity of car, uc = 18 m/s
Inital velocity of truck = 0 m/s
To solve this problem, we have to apply the law of conservation of momentum, which states that the total momentum of a system is constant.
This implies that:

Since the car and the truck stick together after the collision, they will have the same final velocity.
Hence:

Substitute the given values and solve for v (final velocity):

That is the final velocity of the two-vehicle mass.
Answer:
its direction is changing
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