A motor boat starting from rest on a lake accelerates in a straight line at a constant rate of 3 m/s2 for 8 sec so how far does the boat travel during in thisvtime?
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5
u= 0 m per sec
a = 3 m per sec square
t = 8 sec
s =?
According to 2nd equation of motion,
s= ut +1/2 at square
s = (0)(8)+1/2(3)((8)) square
s= 0+3/2×64
s = 3× 32 = 96
So the boat will travel 96 m during this time .
a = 3 m per sec square
t = 8 sec
s =?
According to 2nd equation of motion,
s= ut +1/2 at square
s = (0)(8)+1/2(3)((8)) square
s= 0+3/2×64
s = 3× 32 = 96
So the boat will travel 96 m during this time .
Answered by
1
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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