A fuzzy die (m = 0.2 kg) hangs from the ceiling of a car. When the car accelerates forward along a horizontal road, the die swings backward so the the string supporting it makes an angle of 4 degree with the vertical.

Question

A fuzzy die (m = 0.2 kg) hangs from the ceiling of a car. When the car accelerates forward along a horizontal road, the die swings backward so the the string supporting it makes an angle of 4 degree with the vertical.
1) What is the acceleration of the car? HINT: We're not concerned about how the die swung back, only that it has swung back.

Please help ASAP! Also step by step and the equation to use. Also substitute the numbers into the equation

bobpursley · Answer

drawing a vector diagram. Mg is downward, and force of acceleration is horizontal (F=ma) Tan4deg=ma/mg a= g*tan4

Anonymous · Answer

On Mars, where air resistance is negligible, an astronaut drops a rock from a cliff and notes that the rock falls about d meters during the first t seconds of its fall. Assuming the rock does not hit the ground first, how far will it fall during the first 4t seconds of its fall?