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,...
icon
Related questions
Topic Video
Question
Question 2
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.
Transcribed Image Text:Question 2 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.
Expert Solution
steps

Step by step

Solved in 6 steps with 2 images

Blurred answer
Knowledge Booster
Second law of motion
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
University Physics Volume 1
University Physics Volume 1
Physics
ISBN:
9781938168277
Author:
William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:
OpenStax - Rice University
Physics for Scientists and Engineers: Foundations…
Physics for Scientists and Engineers: Foundations…
Physics
ISBN:
9781133939146
Author:
Katz, Debora M.
Publisher:
Cengage Learning
College Physics
College Physics
Physics
ISBN:
9781938168000
Author:
Paul Peter Urone, Roger Hinrichs
Publisher:
OpenStax College