the statement constant speed (and I assume, in a straight line),
tells you that the net force acting on the car is zero (otherwise
the velocity would vary if net forces produced accelerations)
this means that the force generated by the car was equalled by the
sum of all retarding forces;
now, use W= F d => F=W/d=63452J/2600m = 24.4N
since the forces opposing the car must equal the force generated by
the car, we know that the sum of all retarding forces is -24.4N
the statement constant speed (and I assume, in a straight line),
tells you that the net force acting on the car is zero (otherwise
the velocity would vary if net forces produced accelerations)
this means that the force generated by the car was equalled by the
sum of all retarding forces;
now, use W= F d => F=W/d=63062J/3000m = 21.02N
since the forces opposing the car must equal the force generated by
the car, we know that the sum of all retarding forces is
-21.02N
A car does 63062.0 J of work in travelling 3.0 km at a constant speed. What...
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The car is travelling at a speed of 100 km/h and as it
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direction shown, determine the velocity and acceleration of the
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