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Question 1
A
0.1mm 
B
1.0mm 
C
0.5mm 
D
0.2mm 
Explanation.

No official Explanation yet!

Correct Option:
C

Question 2
A
Temperature 
B
Distance 
C
Displacement 
D
Mass 
Explanation.
Displacement is a vector quantity

Correct Option:
C

Question 3
A
II and IV 
B
I and II 
C
I and III 
D
II and III 
Explanation.

No official Explanation yet!

Correct Option:
A

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

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

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

Correct Option:
A

Question 6
A
25.3kms-1 
B
4.2kms-1 
C
4.0kms-1 
D
11.3kms-1 
Explanation.
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

Question 7
A
48N 
B
12N 
C
27N 
D
36N 
Explanation.

No official Explanation yet!

Correct Option:
C

Question 8
A
Average 
B
Zero 
C
Negative 
D
Positive 
Explanation.

No official Explanation yet!

Correct Option:
B

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.
Conditions for non-parallel coplanar forces

Correct Option:
D

Question 10
A
200J 
B
4000J 
C
2000J 
D
500J 
Explanation.
Kinetic Energy = mgh
= 20 x 10 x 10 J
= 2000J

Correct Option:
C

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