a motor boat starting from rest on a lake accelerates in a straight line at a constant rate of 3m/s square for 8s.how far does the boat travel during this time.
Answers
Answered by
2
Answer:
96m
Explanation:
We know the equation of motion
Distance, s=ut + (1/2)at2 —————-(i)
Substituting the given and known values in equation (i) we get,
s= o (8) + 1/2 (3) (8)2
= 1/2 (3) (64) { 82 = 8 X 8=64}
= 3 (32)
= 96
Therefore, The distance travel by motorboat = 96 m
Answered by
2
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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