Class notes
Helps understand Machanics better
- Course
- Institution
Lecture notes of 2 pages for the course Mechanical at CPUT (Tutorial questions)
[Show more]
Seller
Follow
lindobuhledandelion
Content preview
MECHANICS 1 EMC150S TUTORIAL 2 32 marks1. The following graph shows the motion of two objects – A and B. Solid line = A, dashed line = B. Both of them
start out by moving to the right, and Object B starts moving 10 seconds after Object A as shown by the graph.
38
Object B
v (m/s) 26
18
8 Object A
10 15 25 30 35 40
t (s)
-18
1.1 Calculate the magnitude of Object A’s deceleration. (1)
1.2 Calculate the magnitude of the displacement of Object A to the left. (2)
1.3 Which object is ahead (i.e.: further to the right) at t = 25 s, and by how many metres? (4)
1.4 Calculate the distance covered by Object B in the last 15 seconds of its motion shown above. (1)
1.5 How far is Object A from its starting point when t = 40 s? (2)
1.6 Calculate the velocity of Object B 25 seconds after it has started moving. (i.e.: at t = 35 s) (2)
2. An object is thrown upwards from a height of 2m. Its velocity when it strikes the ground is 11.8 m/s.
2.1 Calculate the total time for its flight. (i.e.: the time from when it was thrown upwards until the time it
returns to the ground. (5)
2.2 Draw a velocity vs time graph that shows the motion of this object. All relevant times and velocities
must be shown on the graph. (3)
3. A door 850 mm wide and hinged at point A is opened to an angle of 48° in 4.2 seconds at constant acceleration.
850 mm
A
3.1 Calculate the door’s maximum angular velocity (in rad/s) as well as its maximum linear velocity at the furthest
point on the door. (3)
3.2 Calculate the door’s angular acceleration as well as its linear acceleration at the furthest point on the door. (2)
3.3 Calculate the linear distance travelled by an ant sitting on the top of the door, halfway along. (the ant is
indicated by the red dot) (2)
Question 4 on next page
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller lindobuhledandelion. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $18.15. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72042 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now