A 7-kg mass slides down a smooth incline. The incline makes an angle of 30° with the horizontal. The acceleration of the mass in the vertical direction is
A) 9.8 m/s $2$
B) 2.5 m/s $2$
C) 7.2 m/s $2$
D) 4.1 m/s $2$

Question

Quizplus · Accepted Answer

The acceleration in the vertical direction can be found by multiplying the gravitational acceleration (9.8 m/s$^2$) by the sine of the angle (sin(30°) = 0.5). Thus, the vertical acceleration is $9.8 \times 0.5 = 4.9$ m/s$^2$, which is not an option provided. Given the options, none directly match the correct calculation, suggesting a potential error in the question or in the interpretation of the provided options. However, based on the closest match principle to the calculated value, none of the options accurately reflect the correct calculation for vertical acceleration based on the given information and standard physics formulas.

A 7-Kg Mass Slides Down a Smooth Incline 222 B) 25 M/s

A 7-Kg Mass Slides Down a Smooth Incline $2$ B) 25 M/s