If a heavy barrel is rolled up a plane inclined at 30°...
If a heavy barrel is rolled up a plane inclined at 30° to the horizontal. its velocity ratio will be?
3.0
3.1
3.2
2.0
Correct answer is D
V.R = \(\frac{1}{sinθ}\)
= \frac{1}{sin 30°}
= \frac{1}{0.5}
= 2
An object of mass 5.0 kg moves with a velocity of 10ms-1. Calculate its momentum....
A note of frequency of 2000Hz has a velocity of 400ms^{-1}. What is the wavelength of the note?...
An electric charge could be transmitted through ...
Which of the following equations for the efficiency of a machine is correct? ...