• BIO How High Can We Jump? The maximum height a typical human can jump from a crouched start is about 60 cm. By how much does the gravitational potential energy increase for a 72-kg person in such a jump? Where does this energy come from?
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- • A 5.76-kg rock is dropped and allowed to fall freely. Find theinitial kinetic energy, the final kinetic energy, and the change inkinetic energy for (a) the first 2.00 m of fall and (b) the second2.00 m of fall.• A 6.60-kg block slides with an initial speed of 2.24 m>s up aramp inclined at an angle of 18.4° with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.44.Use energy conservation to find the distance the block slidesbefore coming to rest.please explain!
- How high can we jump? The maximum height a typical human can jump from a crouched start is about 60 cm. By how much does the gravitational potential energy increase for a 66-kg person in such a jump? Where does this energy come from? Draw free-body diagram.Explanation must be typed/digitally illustrated if appropriate.• A 1.50-kg book is sliding along a rough horizontal sur- face. At point A it is moving at 3.21 m/s, and at point B it has slowed to 1.25 m/s. (a) How much work was done on the book between A and B? (b) If –0.750 J of work is done on the book from B to C, how fast is it moving at point C? (c) How fast would it be moving at C if +0.750 J of work were done on it from B to C?