A lorry of mass 15 tonnes is travelling along a straight horizontal road. The lorry has a constant speed of 16 ms and the driving force being developed by its en is 15625 N. There is a constant resistance to motion of R newtons. Model the lorry as a particle. (i) Find R. The lorry now ascends a hill which is inclined at 3° to the horizontal as shown in Fig. 3 below. The resistance to motion remains unchanged. 3⁰ Fig. 3 (ii) Draw a diagram showing the external forces acting on the lorry. When the lorry is accelerating at 0.1 ms 2 it has speed 10ms™¹ (iii) Find the power now being developed by the lorry's engine.
A lorry of mass 15 tonnes is travelling along a straight horizontal road. The lorry has a constant speed of 16 ms and the driving force being developed by its en is 15625 N. There is a constant resistance to motion of R newtons. Model the lorry as a particle. (i) Find R. The lorry now ascends a hill which is inclined at 3° to the horizontal as shown in Fig. 3 below. The resistance to motion remains unchanged. 3⁰ Fig. 3 (ii) Draw a diagram showing the external forces acting on the lorry. When the lorry is accelerating at 0.1 ms 2 it has speed 10ms™¹ (iii) Find the power now being developed by the lorry's engine.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A lorry of mass 15 tonnes is travelling along a straight horizontal road.
The lorry has a constant speed of 16 ms and the driving force being developed by its eng
is 15625 N.
There is a constant resistance to motion of R newtons.
Model the lorry as a particle.
(i) Find R.
The lorry now ascends a hill which is inclined at 3° to the horizontal as shown in Fig. 3
below. The resistance to motion remains unchanged.
3⁰
Fig. 3
(ii) Draw a diagram showing the external forces acting on the lorry.
When the lorry is accelerating at 0.1 ms 2 it has speed 10ms-¹
(iii) Find the power now being developed by the lorry's engine.
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