# Conceptual Physics Solution Manual

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physics solutions manual

b. If the ball on Jupiter were thrown with an initial velocity that is three times greater, how would this affect your answer to part a? With vf ϭ 0, the value df is directly proportional to the square of initial velocity, vi. That is, df ϭ vf2 Ϫ ᎏᎏ. 2g On Earth, an initial velocity three times greater results in a ball rising nine times higher. On Jupiter, however, the height of nine times higher would be reduced to only three times higher because of df’s inverse relationship to a g that is three times .physics solutions manual

The mass of the rock depends only on the amount of matter in the rock, not on its location in the universe. The path would still be a parabola, but it could be much wider because the rock would go farther before it hits the ground, given the smaller acceleration rate and longer time of flight.If the thrower accidentally drops the rock on her toe, will it hurt more or less than it would on Earth? Explain. Assume the rocks would be dropped from the same height on Earth and on the Moon. It will hurt less .physics solutions manual

What is the magnitude of its displacement? Solve this problem both graphically and mathematically, and check your answers against each other. R 2 ϭ A2 ϩ B2 R ϭ ෆ2 A2 ϩ Bෆ ϭ (65.0 ෆϩ (125.0 kmෆ ෆkm)2 ෆෆ)2 ϭ 141 kmTwo shoppers walk from the door of the mall to their car, which is 250.0 m down a lane of cars, and then turn 90 to the right and walk an additional 60.0What is the magnitude of the displacement of the shoppers’ car from the mall door? Solve this problem both graphically and mathematically, and .physics solutions manual

Chapter 4 continued page 93Two horizontal forces, 225 N and 165 N, are exerted on a canoe. If these forces are applied in the same direction, find the net horizontal force on the canoe. Fnet ϭ 225 N ϩ 165 N ϭ 3.90ϫ102 N in the direction of the two forcesIf the same two forces as in the previous problem are exerted on the canoe in opposite directions, what is the net horizontal force on the canoe? Be sure to indicate the direction of the net force. Fnet ϭ 225 N Ϫ 165 N ϭ 6.0ϫ101 N in the direction of the .
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