/hat is the speed of a 0.145kg baseball if its kinetic energy is 109J?
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- Jane and Jake are looking at what happens to body 1 of mass m and body 2 of mass 2m, initially at rest, when equal forces are applied separately to the two bodies. Jake says that equal forces applied for equal times do equal amounts of work on the two bodies. Jane says that the two forces do equal amounts of work only if the two bodies move equal distances in the direction of the forces. Which one, if either, is correct? O Jake, because the speed of body 1 is half the speed of body 2, but m¡v1= m2V2- O Jane, because work does not depend on mass, only on force times distance. O Jake, because all bodies travel equal distances when equal forces are applied for equal times. O Jane, because it takes the same time for all bodies to travel equal distances when equal forces are involved. O Neither, because we can't compare the amounts of work done on bodies of different mass.Given that the PE at A is 20 kJ and KE at A is 5.0 kJ. What is the KE at B if the height at B is 2.0 m? ( mass= 1000kg) O a) 19.6 kJ Ob) 5.4 kJ O c) 7.0 kJ Od) 1935 JA 20 G bullet is fired from a gun at 1:25 m/s how much kinetic energy does it have
- 2) The sloth is one of the slowest creatures on Earth. Despite being slow, they are really good swimmers! How fast must the swim if they has a mass of 7.2 kg and 0.051 Joules of kinetic energy?Glenn hits a baseball and the baseball changes its energy by 388 J. If Glenn was in contact with the ball for 0.40 seconds, how much power did Glenn generate? Do NOT include units Round to the nearest whole number2. The same cart and hanging mass given above are released from rest. How far has the cart traveled by the time it reaches a speed of 1.00 m/s?