A block slides down a frictionless plane that makes an angle of 30 with the horizontal. The acceleration of the block (in cm/s²) is: A) 980 B) 566 C) 849 D) zero E) 490

Question

Quizplus · Accepted Answer

The acceleration of the block down the plane can be found using the formula a = g*sin(theta), where g is the acceleration due to gravity (980 cm/s^2) and theta is the angle of the plane. Plugging in the values, we get a = 980*sin(30) = 490 cm/s^2. Therefore, the best choice is E.

A Block Slides Down a Frictionless Plane That Makes an Angle