0.2ms\(^{-1}\)
0.5ms\(^{-1}\)
5.0ms\(^{-1}\)
5.5ms\(^{-1}\)
Correct answer is C
Using; m\(_{1}\) u\(_{1}\) + m\(_{2}\) u\(_{2}\) = (m\(_{1}\) + m\(_{2}\))v
m\(_{1}\) = 0.5kg, u\(_{1}\) = 10ms\(^{1}\), m\(_{2}\) = 0.5kg, u\(_{1}\) = 0
\(\therefore\) (0.5kg x 10) + (0.5 x 0) = (0.5 + 0.5)v
v = 5ms\(^{1}\)
I, II, III and IV
I, II, and III only
I, II, and IV only
I and IV only
Correct answer is B
Only 'mass' is a fundamental quantity
A man will exert the greatest pressure when he?
lies flat on his back
lies on his belly
stands on both feet
stands on the toes of one foot
Correct answer is D
Pressure varies inversely as A
i.e P \(\propto\) \(\frac{1}{A}\)
The slope of the straight line displacement-time graph indicates?
distance traveled
uniform velocity
uniform acceleration
uniform speed
Correct answer is B
\(\frac{\bigtriangleup s}{\bigtriangleup t}\) = uniform velocity
Which of the following statement about viscosity is not true? it
depends on areas of the surfaces in contact
occurs in fluids
is independent of the relative velocity of the layers
depends on the tangential force between the layers
Correct answer is A
No explanation has been provided for this answer.