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.
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter5: Newton's Law Of Motion
Section: Chapter Questions
Problem 77AP: (a) Find an equation to determine the magnitude of the net force required to stop a car of mass m,...
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