1. If two forces of 20 N towards north and 12 N towards south are acting on an object. The resultant forcewill be(a) 8 N toward South (b) 32 N toward South (c) 20 N toward North (d) 8 N toward North2.A rocket moves through empty space in a straight line with constant speed. It is far from thegravitational effect of any star or planet. Under these conditions, the net force that must be appliedto the rocket in order to sustain its motion is(a) equal to its weight (b) equal to its mass (c) depend on how fast it is moving(d) zero3. Two identical (equal) charges, 2.0 m apart, exert forces of magnitude 4.0 N on each other. The value ofeither charge is:(a) 1.8x10°C(b) 4.22x10-5C(c) 1.9x10°C(d) 3.8x10°C

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If two forces of 20 N towards north and 12 N towards south are acting on an object. The resultant force will be (a) 8 N toward South (b) 32 N toward South (c) 20 N toward North (d) 8 N toward North

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter8: Conservation Of Energy

Section: Chapter Questions

Problem 84PQ

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