A fielder tosses a 0.15 kg baseball at 36 m/s at a 27 degree angle to the horizontal. What is the ball's kinetic energy at the start of its motion? What is the kinetic energy at the highest point of its arc?

An 11 kg object is flying at speed 4c/5.  Calculate its kinetic energy, in units of kg c2.

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A ball with an initial velocity of 10 m/s rolls along a curved surface, as shown in the diagram. The mass of the ball is 100 g. Assume that the only energy conversions that take place are between the kinetic energy and the gravitational potential energy of the ball and calculate the speed of the ball at different positions v1, v2, v3, V4. 10 m/s U3 25 m 20 m 10 m 15 m

A 2 kg watermelon is dropped from a roof and has speed of 5 m/s just before it hits the ground.how much kinetic energy does the watermelon have at this moment ?

1. A baseball outfielder throws a 0.15-kg baseball at a speed of 40 m/s and an initial angle of 30°. (a) What is the maximum height of the baseball? (b) What is the kinetic energy of the baseball at the highest point of the trajectory? (c) What is the potential energy of the baseball at the highest point of the trajectory?

A physics student ties a ball with a mass 0.30kg to a string which can exert a maximum force of 41 N without breaking. The student swings the ball in a circle with a radius of 0.91 m, slowly increasing the speed until the string breaks. The circle is oriented vertically so that the ball moves up and down while traveling in a circle. What is the speed of the ball as the string breaks?

A rock is attached to an end of a 0.80 m rope. You whirl the 2.0 kg rock in a circle while holding m the other end of the rope. If it moves at a constant speed of 6.0 -, what is the work done on S the rock for every revolution it makes? O 90 J zero 72 J O 16 J