A smooth groove of length 6.25 m is cut on a 30° incline, making 53° with the horizontal edge line of the incline. A ball released from the top of the groove reaches the bottom with speed: (Take g = 1

Question

A smooth groove of length 6.25 m is cut on a 30° incline, making 53° with the horizontal edge line of the incline. A ball released from the top of the groove reaches the bottom with speed: (Take $g = 10$ $m / s^{2}$ )

Answer:

7.10

Solution:

$v = 2 g l sin θ sin α = 2 \times 10 \times 6.25 \times 0.5 \times 0.8 = 50 = 7.1 m / s$ .

TestHub · Accepted Answer

v = 2 g l sin θ sin α ​ = 2 × 10 × 6.25 × 0.5 × 0.8 ​ = 50 ​ = 7.1 m / s .

Physics - Kinematics Question with Solution | TestHub

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