Physics 2014 | Study Mode

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Question 4
A
Vibratory and translational motion 
B
Random and translational motion 
C
Rotational mand oscillatory motion 
D
Translational and rotational motion 
Explanation.
Share Answer

The tyre in motion makes a rotation and it translates in a straight line alongside. if the wheels is turned it continued further in a translational straight line through rotational motion.


Correct Option:
D
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Question 5
A
12ms-1 
B
144ms-1 
C
72ms-1 
D
36ms-1 
Explanation.
Share Answer V2 = U2 x 2ax
V2 = 0 x 2(3)(24)
V2 = 144
V = \(\sqrt{144}\)
V = 12ms-1

Correct Option:
A
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Question 6
A
25.3kms-1 
B
4.2kms-1 
C
4.0kms-1 
D
11.3kms-1 
Explanation.
Share Answer Vescape = \(\sqrt{2gR}\)
Vescape = \(\sqrt{2\times10\times6.4\times10^6}\)
Vescape = \(\sqrt{128000000}\)
Vescape = 11313.7085mS-1
Vescape = 11.313kmS-1

Correct Option:
D
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Question 7
A
48N 
B
12N 
C
27N 
D
36N 
Explanation.
Share Answer

No official Explanation yet!


Correct Option:
C
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Question 8
A
Average 
B
Zero 
C
Negative 
D
Positive 
Explanation.
Share Answer

No official Explanation yet!


Correct Option:
B
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Question 9
A
Their lines of action are parallel. 
B
They are represented in magnitude only 
C
They are represented in direction only 
D
Their lines of action meet at a point 
Explanation.
Share Answer Conditions for non-parallel coplanar forces

Correct Option:
D
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Question 10
A
200J 
B
4000J 
C
2000J 
D
500J 
Explanation.
Share Answer Kinetic Energy = mgh
= 20 x 10 x 10 J
= 2000J

Correct Option:
C
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