ANS
{ A }
Magnitude
Direction
{ B }
Average speed in ( m/s )
{ C }
Magnitude
Direction
What is the average velocity of a bowling ball that moves down the lane 8 meters in 4 seconds?
1 answer:
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By equation of motion we have v = u + at
Where u = Initial velocity, v = final velocity, t = time taken and a = acceleration
Here v = 141 m/s, u = 17.7 m/s and t = 6 s
On substitution we will get
141 = 17.7+ 6a
So, a = (141-17.7)/6 = 20. 55 m/
Aceeleration = 20. 55 m/ along north direction.