E L asked in Science & MathematicsPhysics · 1 month ago

Help with physics questions please?

1.  At the instant a bullet (Bullet A) is being fired horizontally from a gun, an identical bullet (Bullet B) is dropped from the same height as the muzzle of the firing gun. Briefly describe the order in which bullets A and B hit the ground.

5. A softball coach throws a 1 kg ball horizontally to her player with an initial velocity of 40 m/s. The ball leaves her hand at 6 m high, and her catcher is 20 meters away.

A. What is the vertical acceleration, ay, in m/s2? (+ is for up, - is for down)

B. How long is the ball in the air?

10. An M-16 is fired from level ground at an upwards angle of 10 degrees with respect to the horizontal. The initial velocity of the bullet is 948 m/s, but because it is fired at a 10 degree angle, the vertical component of the initial velocity is 165 m/s and the horizontal component is 934 m/s. Ignore air resistance and the curvature of the earth in this problem.

A. What is the initial vertical velocity, vyi, in m/s?  (+ is for up, - is for down)

B. What is the vertical acceleration, ay, in m/s2? (+ is for up, - is for down)

C. What is the final vertical velocity, vxf, in m/s?

D. What is the height difference, Δy, between the point where the bullet is fired and the point where the bullet lands?

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• oubaas
Lv 7
1 month ago