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Question
A motorboat starting from rest on a lake accelerates in a straight line at a constant rate if 3.0 m/s² for 8.0 seconds. How far does the boat travel during this time?
A motorboat starting from rest on a lake accelerates in a straight line at a constant rate if 3.0 m/s² for 8.0 seconds. How far does the boat travel during this time?
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Solution
equation of kinematics: motion :
s = u t + 1/2 a t²
here u = 0 m/sec a = 3.0 m/sec/sec t = 8.0 sec
s = 0 * 8.0 + 1/2 * 3 m/sec² * (8.0 sec)²
distance travelled in 8 sec = 96 meters
s = u t + 1/2 a t²
here u = 0 m/sec a = 3.0 m/sec/sec t = 8.0 sec
s = 0 * 8.0 + 1/2 * 3 m/sec² * (8.0 sec)²
distance travelled in 8 sec = 96 meters
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