Reference no: EM132599628

1) A 0.5 kg playground ball moving at 10 m/s collides head-on with a 1.6 kg playground ball moving in the opposite direction at 6 m/s. Determine the motion of each after impact of

a.) e = 3/4

b.) the balls stick together

c.) the collision is perfectly elastic.

2)  The three finalist in a contest are brought to the center of a large flat field. Calculate the following displacements:

72.4 m, 32^o east of south

57.3 m, 36^o south of west

17.8 m straight south

Calculate the magnitude and direction of the resultant.

3) A batter hits a baseball so that it leaves the bat at speed of 37 minute per second at an angle of 53.1^o.

Calculate:

a.) The position of the ball and the magnitude and the direction of its velocity at t = 2 sec.

b.) The time needed for ball to reach its maximum height and its height at this point.

c.)The horizontal range, the horizontal distance from the starting point to where the ball hits the ground.

4) The official world land speed record is 1228 km/h at the jet engine car. Express this speed in meters per second and feet per second.

5) A wheel rotates with a constant angular acceleration of 3.50 rad/s².

a.) If the angular speed of the wheel is 2.80 rad at t = 0, through what angular displacement does the wheel rotate in 2.5 sec?

b.) Through how many revolutions has the wheel turned during this time interval?

c.) What is the angular speed of the wheel at t = 2.5 sec?