# physics

1. A basketball player passes the ball to his teammate at an angle of 40degrees above the horizontal. The ball is released 1.5m above the floor at a speed of 5m/s. Find:

a) the maximum height reached by the ball from the floor

b) the horizontal required to reach the maximum height

c) the horizontal distance the ball traveled during this time

2. A book slides off a horizontal table 1m high with a speed of 2m/s. Find:

a) the horizontal distance of the book from the table when it strikes the floor

b) the time of travel and the horizontal distance traveled if the initial speed is doubled.

1. 👍
2. 👎
3. 👁
1. 1. Vo = 5 m/s @ 40 Deg.
Xo = 5 cos40 = 3.83 m/s.
Yo = 5 sin40 = 3.21 m/s.

a. Yf^2 - Yoo^2 + 2g*h,
h = (Yf^2 - Yo^2) / 2g,
h = 1.5 + (0 - (3.21)^2) / -19.6=2.03m.

b.

c.Tr = (Yf - Yo) / g,
Tr = (0 - 3.21) / -9.8 = 0.328 s. = Rise time or time to reach max. ht.

Dx = X0 * Tr = 3.83 * 0.328 = 1.26 m.

2. d = Vo*t + 0.5g*t^2 = 1 m.
0 + 4.9t^2 = 1,
t^2 = 0.204,
t = Tf = 0.452 s. = Fall time or time in flight.

a. Dx = Xo * Tf = 2 * 0.452 = 0.904 m.

b. Time of travel remains the same.
Dx = 4 * 0.452 = 1.81 m.

1. 👍
2. 👎

## Similar Questions

1. ### physics

A basketball player is trying to make a half-court jump shot and releases the ball at the height of the basket. Assuming that the ball is launched at 51 degrees, 14.0 m from the basket, what speed must the player give the ball?

2. ### Physics

A player passes a 0.600-kg basketball down court for a fast break. The ball leaves the player's hands with a speed of 8.20m/s and slows down to 7.30m/s at its highest point.Ignoring air resistance, how high above the release point

3. ### physics

A basketball player is balancing a spinning basketball on the tip of his finger. The angular velocity of the ball slows down from 18.0 to 14.7 rad/s, during the slow down the angular displacement is 85.4 rad. Determine the time it

4. ### Physics

A basketball player is trying to make a half-court jump shot and releases the ball at the height of the basket. Assuming that the ball is launched at 51 degrees, 14.0 m from the basket what speed must the player give the ball? So

1. ### physics

a 2.00 m tall basketball player is standing on the floor 10 m from the basket. if she shoots the ball at a 40 degree angle with the horizontal at what initial speed mjust he throw the basketball so that it goes through the hoop

2. ### physics homework

To make a bounce pass, a player throws a 0.60-kg basketball toward the floor. The ball hits the floor with a speed of 5.2 m/s at an angle of 60 ∘ to the vertical. Part A If the ball rebounds with the same speed and angle, what

3. ### Physics

Two soccer players kick a soccer ball back and forth along a straight line. The first player kicks the ball 19 m to the right to the second player. The second player kicks the ball to the left weakly; it only moves 1.7 m before

4. ### physics

A basketball player is standing on the floor 10.0 m from the basket as in the figure below. The height of the basket is H = 3.05 m, and he shoots the ball at an angle, θ = 37.6°, with the horizontal from a height of h = 2.20 m.

1. ### Physics

A basketball player throws a ball at an angle of 30º above the horizontal. At what point does the magnitude of the acceleration reach a minimum?

2. ### Physics

A basketball player attempting a free throw shoots the ball at an angle of 35 above the horizontal. The basket is 4.21 m from the foul line and 3.05 m above the floor. If the ball is released at a height of 1.83 m above the floor

3. ### physics

In getting ready to slam-dunk the ball, a basketball player starts from rest and sprints to a speed of 11.0 m/s in 2.58 s. Assuming that the player accelerates uniformly, determine the distance he runs.

4. ### physics

A 78 g basketball is launched at an angle of 45.4◦ and a distance of 10.1 m from the basketball goal. The ball is released at the same height (ten feet) as the basketball goal’s height. A basketball player tries to make a long