Question

a ship starts from rest and accelerates at the rate of 5km/hr^2 for half a minute.the speed of the ship after half a minute would be​

Answer 1

Given :-

Acceleration = 5 km/h² = 5 × 5/18 = 25/18 m/s

Time = half minute = 30 sec

To Find :-

Final velocity

Solution :-

v = u + at

v = 0 + 25/18 × 30

v = 0 + 25/3 × 5

v = 0 + 125/3

v = 125/3

v = 41.67 m/s

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Answer 2

Given :-

• Acceleration = 5 km/h² = 5 × 5/18 = 25/18 m/s

• Time = half minute = 30 sec

To Find :-

• Final velocity

Solution :-

v = u + at

v = 0 + 25/18 × 30

v = 0 + 25/3 × 5

v = 0 + 125/3

v = 125/3

v = 41.67 m/s