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Was about vectors,forces,collisions, Exercises of Physics

University of the Western CapePhysics

The subject is Physics 111 mostly for first years,by Dr Herbert.They are exercises based on forces,collions and vectors.Good for exam preparations.

Typology: Exercises

2022/2023

Uploaded on 04/08/2025

cebile-sonia
cebile-sonia 🇿🇦

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Physics 111 Tutorial Test 8 2 May 2024
Time: 30 to 40 minutes Mark: 15
NOTE: There were different versions of this test, with different values – this is a sample test
Question 1 (10)
1.1.1 Circle the correct answer. Consider the head-on collision of two carts A and B on a track with a
coefficient of friction of 0.12. The isolated system for which momentum is conserved is (a) the cart
A and cart B (b) the cart A (c) the cart B (d) impossible to determine. (1)
1.1.2 Explain your answer. (2)
1.2 A 0.15 kg cricket ball is bowled at 40 m.s-1 horizontally. The batman’s hits it straight back towards the
bowler at 50 m.s-1.
1.2.1 Determine the change in the momentum of the ball. (4)
1.2.2 If the ball and bat are in contact for 4.3x10‒4 s, what is the average force the bat exerts on the ball
during contact? (3)
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Name & Surname:………………………………………………………………………………………………
Student nr.:……………………………… Group nr.:……………………….
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Physics 111 Tutorial Test 8 2 May 20 24 Time: 30 to 40 minutes Mark: 15 NOTE: There were different versions of this test, with different values – this is a sample test Question 1 (10) 1.1.1 Circle the correct answer. Consider the head-on collision of two carts A and B on a track with a coefficient of friction of 0.12. The isolated system for which momentum is conserved is (a) the cart A and cart B (b) the cart A (c) the cart B (d) impossible to determine. (1) 1.1.2 Explain your answer. ( 2 ) 1.2 A 0.15 kg cricket ball is bowled at 40 m.s-^1 horizontally. The batman’s hits it straight back towards the bowler at 5 0 m.s-^1. 1.2.1 Determine the change in the momentum of the ball. (4) 1.2.2 If the ball and bat are in contact for 4. 3 x10‒^4 s, what is the average force the bat exerts on the ball during contact? (3)

Name & Surname:………………………………………………………………………………………………

Student nr.:……………………………… Group nr.:……………………….

Question 2 (5) An archer shoots an arrow toward a target that is sliding toward her with a speed of 2.50 m/s on a smooth, slippery surface. The 22.5 g arrow is shot with a speed of 35.0 m/s and passes through the 300 g target, which is stopped by the impact. What is the speed of the arrow after passing through the target?