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In an arcade game,a ball is launched from the corner of a smooth inclined plane.The inclined plane makes a 30 degree angle with the horizontal and has a width of w = 50cm.The spring-loaded launcher makes an angles of 45 degree with the lower edge of the inclined plane.The goal is to get the ball in a small hole at the opposite corner of the inclined plane. With what initial velocity should you launch the ball to achieve this goal?
A tennis ball gun launches tennis balls at 17.6 m/s . It's pointed straight up and launches one ball; 2.0 s later, it launches a second ball. I already found - At what time (after the first launch) are the two balls at the same height? = 2.8s What..
A rope applies a horizontal force of 180N to pull a crate a distance of 2m across the floor A frictional force of 60N opposes this motion.
How far away does the ball strike the ground?
Two astronauts are, 3.18 m apart in their spaceship, speaking to each other. How far away from the Earth is the spaceship?
a novice golfer on the green takes three strokes to sink the ball. the successive displacements are 4.00 m to the north
"Two football players are moving toward each other in a straight line. Number 56 has a mass of 116 kg and a velocity of 3 m/s, Determine the velocity (magnitude and direction) of players, after the collision
A satellite has a mass of 99kg and is located at2.0x106m above the surface of Earth. What is the potential energy associated with the satellite atthis location?
A 2.0 kg ball tied to a string fixed to the ceiling is pulled to one side by a force to an angle of ? = 33.5°. how large is the force that is holding the ball in position
A 65.0 kg human sprinter can accelerate from rest to 10 m/s in 2.90 s. all through the same interval, a 33 kg greyhound can accelerate from rest to 20 m/s. calculate (a) change in kinetic energy and (b) average power output for each.
Two long, parallel wires are separated by a distance of 2.1 cm. What is the current in the second wire? Express the answer with two decimal places
a 3-kg ball moving at 11 ms collides elastically and head-on with a second 20-kg ball moving in the opposite direction
A girl sits fixed on a merry-go-round of mass M = 500 kg and radius R = 2 m. The merry-go-round is at first at rest and is free to rotate without friction.
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