Assume: a 78 g basketball is launched at an angle of 45.3 ◦ and a distance of 19.6 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 jump-shot as described above. the acceleration of gravity is 9.8 m/s 2 . what speed must the player give the ball

You and a friend (alex) are at a a tree-top adventure park .. . part of the course requires you to climb up a rope. you both climb the same rope in the same amount of time. however, the tension in the rope is greater when alex climbs. who did the most work? alex did - more tension means more force - more force means more work was done you did - less tension means less force - less force means more work was done to find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? when more work was done, the couch was moved less. when more work was done, the couch was moved further. when more work was done, the couch wasn't moved at all. when more work was done, the couch was moved the same distance.

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?