Question #6417140Single Choice

Physics

Question

A small ball is thrown horizontally with an initial speed . Before hitting the ground, it passes through two points, A and B. At point A, the angle between the ball's velocity direction and the horizontal is 37°, and at point B, the angle between the velocity direction and the horizontal is 53°. Neglecting air resistance and taking sin37°=0.6, cos37°=0.8, and g = 10 m/s², which of the following statements is correct?

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Options

A
    The time it takes for the ball to travel from point A to point B is t=0.24s
B
    The time it takes for the ball to travel from point A to point B is t=0.7s
C
    The height difference between points A and B is h=2.45 m
D
    The horizontal distance between points A and B is s=8.75 m

Answer & Analysis