MP the MasteringPhysics website. (II) A 380-kg piano slides 2.9 m down a 25° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (Fig. 6-36). Determine: (a) the force exerted by the man, (b) the work done on the piano by the man, (c) the work done on the piano by the force of gravity, and (d) the net work done on the piano. Ignore friction. FIGURE 6-36 Problem 10. J(I) Recall from Chapter 4, Example 4-14, that you can use a pulley and ropes to decrease the force needed to raise

Question

A 380-kg piano slides 2.9m down a. 25 degree incline and is kept frim accelerating by a man who is pushing back on it parallel to the incline determine: a) thr force exerted by the man, b) the work done on the piano by the man, c) the work done on the piano by the force of gravity, and the network done on the piano. Ignore friction

MP
the MasteringPhysics website.
(II) A 380-kg piano slides 2.9 m down a 25° incline and is
kept from accelerating by a man who is pushing back on
it parallel to the incline (Fig. 6-36). Determine: (a) the
force exerted by the man, (b) the work done on the piano
by the man, (c) the work done on the piano by the force of
gravity, and (d) the net work done on the piano. Ignore
friction.
FIGURE 6-36
Problem 10.
J(I) Recall from Chapter 4, Example 4-14, that you can use
a pulley and ropes to decrease the force needed to
raise
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Transcribed Image Text

MP the MasteringPhysics website. (II) A 380-kg piano slides 2.9 m down a 25° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (Fig. 6-36). Determine: (a) the force exerted by the man, (b) the work done on the piano by the man, (c) the work done on the piano by the force of gravity, and (d) the net work done on the piano. Ignore friction. FIGURE 6-36 Problem 10. J(I) Recall from Chapter 4, Example 4-14, that you can use a pulley and ropes to decrease the force needed to raise