If a light ray from a candle strikes a mirror at an angle of 40° with the normal, at what angle will the ray reflect?
1 answer:
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Answer:
v = 9 m/s
Explanation:
It is given that,
Initial speed of the sailboat, u = 3 m/s
Acceleration of the sailboat,
Initial speed of the motorboat, u = 0
Acceleration of the motorboat,
Time elapsed, t = 3 s
To find,
The velocity of the sailboat
Solve,
Let v is the velocity of the sailboat after 3 seconds. By using the equation of kinematics, it can be calculated.
v = 9 m/s
Therefore, the velocity of the sailboat is 9 m/s.