If you drop an object from the top of a high building,how long does it take for the object to reach a speed of 100 km/h?
A)0.124 s
B)2.83 s
C)5.11 s
D)9.81 s
E)12.3 s

Question

Quizplus · Accepted Answer

First, convert 100 km/h to meters per second: 100 km/h = 100 * 1000 / 3600 = 27.78 m/s. Then, use the formula v = gt, where v is the final velocity (27.78 m/s), g is the acceleration due to gravity (approximately 9.81 m/s^2), and t is the time in seconds. Solving for t gives t = v / g = 27.78 / 9.81 ≈ 2.83 seconds.

If You Drop an Object from the Top of a High