Question

A boat starting from rest on a lake accelerates in a straight line at a constant rate of 3 m/s² for 8 sec of a does the boat travel during this time.​

Answer 1

Given :-

☄ Initial velocity of the boat, u = zero

☄ Acceleration of the boat, a = 3m/s²

☄ Time, t = 8s

To find :-

distance covered by boat in the given interval of time

Solution :-

as acceleration of the boat is constant

using equation of motion .i.e,

➠ s = ut + 1/2 at²

s = distance, u = initial velocity, a = acceleration and t = time taken

➠ s = (0)(8) + 1/2(3)(8)²

➠ s = 0 + 1/2(3)(64)

➠ s = (3)(32)

➠ s = 96 m

thus, the distance covered by the boat is 96 m.

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#sanvi....

Answer 2

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Given :-

• ♠️ Initial velocity of the boat, u = zero

• ♠️ Acceleration of the boat, a = 3m/s²

• ♠️Time taken, t = 8s

To find :-

• ♥️distance covered by boat in the given interval of time

Solution :-

• ♣️as acceleration of the boat is constant

• ♣️using equation of motion .i.e,

➠ s = ut + 1/2 at²

• s = distance,
• u = initial velocity,
• a = acceleration
• t = time taken

➠ s = (0)(8) + 1/2(3)(8)²

➠ s = 0 + 1/2(3)(64)

➠ s = (3)(32)

➠ s = 96 m

$\therefore$ the distance covered by the boat is 96 m.

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