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Questions (13)
A soccer player kicks the ball toward a goal that is 27.0 m in front of him. The ball leaves his foot at a speed of 16.7 m/s and
0 answers
565 views
A rocket is fired at a speed of 50.0 m/s from ground level, at an angle of 46.0 ° above the horizontal. The rocket is fired
0 answers
511 views
In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar to
1 answer
954 views
A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 660 m/s. The gun is pointed directly at the
1 answer
667 views
A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's
1 answer
625 views
A tennis ball is struck and departs from the racket horizontally with a speed of 27.4 m/s. The ball hits the court at a
1 answer
682 views
A volleyball is spiked so that it has an initial velocity of 16.6 m/s directed downward at an angle of 55.2 ° below the
0 answers
625 views
The earth moves around the sun in a nearly circular orbit of radius 1.50 x 1011 m. During the three summer months (an elapsed
1 answer
2,700 views
In diving to a depth of 979 m, an elephant seal also moves 104 m due east of his starting point. What is the magnitude of the
1 answer
846 views
A woman on a bridge 91.1 m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an
1 answer
898 views
Suppose a car is traveling at +22.0 m/s, and the driver sees a traffic light turn red. After 0.560 s has elapsed (the reaction
1 answer
608 views
A ball is thrown vertically upward, which is the positive direction. A little later it returns to its point of release. The ball
4 answers
5,634 views
From her bedroom window a girl drops a water-filled balloon to the ground, 4.94 m below. If the balloon is released from rest,
1 answer
1,019 views
