A motorboat starting from rest on a lake accelerates in a straight line at a constant rate of 3.0m/s^2 for 8 sec . How far does the boat travel during this time?
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Answer:
Given :
Acceleration of boat = 3 m/s²
Time = 8 seconds
To Find :
The distance travelled by the boat during that time
Solution :
From second equation of motion ,
Where ,
u is initial velocity
t is time
a is acceleration
s is distance travelled
We have ,
- u = 0 [starting from rest]
- t = 8 sec
- a = 8 m/s²
Substituting the values in the equation ,
Hence ,
The distance travelled by the boat during that time is 96 m.
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