Physics | Study Mode

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Question 1
A
upthrust only 
B
upthrust and the ball's weight 
C
the ball's weight and viscous force 
D
upthrust, the ball's weight and viscous force 
Explanation.
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No official Explanation yet!


Correct Option:
D
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Question 2
A
\(m \omega^2 r\) 
B
\(\frac{mv^2}{r}\) 
C
\(m \omega r\) 
D
\(\frac{mv^2}{r^2}\) 
Explanation.
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No official Explanation yet!


Correct Option:
B
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Question 5
A
first law of motion 
B
second law of motion 
C
third law of motion 
D
law of universal gravitation 
Explanation.
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No official Explanation yet!


Correct Option:
A
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Question 7
A
manufacturing of rain coats 
B
production of palm oil 
C
floating of a needle on water 
D
washing of plates with soapy water 
Explanation.
Share Answer

No official Explanation yet!


Correct Option:
B
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Question 8
A
1.00s 
B
2.00s 
C
2.18s 
D
3.00s 
Explanation.
Share Answer T = \(\frac{2u}{g} = \frac{2 \times 10}{10} = 2s\)

Correct Option:
B
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Question 9
A
0.25ms-2 
B
0.80ms-2 
C
3.20ms-2 
D
4.00ms-2 
Explanation.
Share Answer S = ut + \(\frac{1}{2} at^2\)

40 = 0 x 10 + \(\frac{1}{2}\) x a x 102

50a = 40

a = \(\frac{40}{50}\)

= 0.8ms-2

Correct Option:
B
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Question 10
A
500.0g 
B
400.0g 
C
44.4g 
D
25.0g 
Explanation.
Share Answer clockwise moment = Anti-clock wise moment

= M x 40 = 100 x 10

M = \(\frac{1000}{40}\)

= 25g

Correct Option:
D
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