A fisherman casts his bait into the river at an angle of 25°.As the line unravels,he notices that the bait and hook reach a maximum height of 3.9 m.What was the initial velocity he launched the bait with?
A)21 m/s
B)9.2 m/s
C)10 m/s
D)8.4 m/s

Question

Quizplus · Accepted Answer

The correct answer is A because the initial velocity is 21 m/s. This can be calculated using the formula v = sqrt(2gh), where v is the initial velocity, g is the acceleration due to gravity (9.8 m/s^2), and h is the maximum height reached (3.9 m).

A Fisherman Casts His Bait into the River at an Angle