Answer detailly 42, 43 showing all steps 42. A car of mass 1000kg travelling along a straight path accelerates uniformlyfrom 15m/s to 25m/s in a distance of 320m. the resistance to the motion ofthe car is 145N. the driving force of the engine of the car isA. 480B. 207.5C. 770D. 76043. A particle of mass 15kg rest on a smooth horizontal table. It is connected bya light flexible string passing over a smooth pulley fixed at the edge of thetable to another particle of mass 10kg which hangs freely. Taking g as 10ms-2and given that the acceleration of the system is 4ms2 when the system isreleased from rest. The force exerted by the string on the pulley isA. 60 2NB. 120-/2 NC. 60ND. 120N

42. Given: Mass of car, m=1000 kg Initial speed, u=15 m/s Final speed, v=25 m/s Distance, d=320 m…

42. A car of mass 1000kg travelling along a straight path accelerates uniformly from 15m/s to 25m/s in a distance of 320m. the resistance to the motion of the car is 145N. the driving force of the engine of the car is A. 480 B. 207.5 C. 770 D. 760

42. A car of mass 1000kg travelling along a straight path accelerates uniformly from 15m/s to 25m/s in a distance of 320m. the resistance to the motion of the car is 145N. the driving force of the engine of the car is A. 480 B. 207.5 C. 770 D. 760

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter13: Universal Gravitation

Section: Chapter Questions

Problem 13.1CQ: Each Voyager spacecraft was accelerated toward escape speed from the Sun by the gravitational force...

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Question

Answer detailly 42, 43 showing all steps

42. A car of mass 1000kg travelling along a straight path accelerates uniformly
from 15m/s to 25m/s in a distance of 320m. the resistance to the motion of
the car is 145N. the driving force of the engine of the car is
A. 480
B. 207.5
C. 770
D. 760
43. A particle of mass 15kg rest on a smooth horizontal table. It is connected by
a light flexible string passing over a smooth pulley fixed at the edge of the
table to another particle of mass 10kg which hangs freely. Taking g as 10ms-2
and given that the acceleration of the system is 4ms2 when the system is
released from rest. The force exerted by the string on the pulley is
A. 60 2N
B. 120-/2 N
C. 60N
D. 120N

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