If a heavy barrel is rolled up a plane inclined at 30° to the horizontal. its velocity ratio will be?
A
3.0
B
3.1
C
3.2
D
2.0
Verified Correct Answer: D.
Physical Principles & Numerical Solution
V.R = \(\frac{1}{sin\theta}\)
= \(\frac{1}{sin 30^\circ}\)
= \(\frac{1}{0.5}\)
= 2
Source: WAEC / JAMB / NECO Classroom Archive (Record #14146)