Question

A motar boat starting from rest on a lake to accelerate in a straight line at a constent rate of 3.0m/sec².How far does the boat travel during this time?​

Answer 1

Answer:

96 metres

Explanation:

Given :

• Initial velocity = u = 0 m/s

• Acceleration of the motor boat = a = 3 m/s²

• Time taken = 8 seconds (time is not given and i have assumed it as 8 seconds as it is a ncert question)

To find :

• Distance travelled by the motor boat

Using second equation of motion :

S=ut+½×at²

S=0×8+½×3×8×8

S=0+96

S=96

The distance travelled by the motor boat is equal to 96 metres assuming the time equal to 8 seconds

Answer 2

Ques Error :

Time : 8 sec.

______________

Answer :

Motor boat will cover  96 m  during the given time.

$\rule{100}2$

It is given that,

• u = 0 m/s
• a = 3 m/s²
• t = 8 sec
• s = ?

We know that,

S = ut + 1/2 at²

Substitute the given values. We get,

S = 0 × 8 + 1/2 ( 3 ) ( 8 )²

⇒ s = 0 + 1/2 ( 3 ) ( 64 )

⇒ s = 96 m  

Therefore,

The motor boat will cover 96 m distance.

$\rule{200}2$