Question

A falling object accelerates of 9.8 m/s/s. If the object starts with a speed of 0, how long would it have to fall before it reaches a speed of 98 m/s?

Answer 1

Answer:

T= 10 seconds

Explanation:

• u = 0 m/s
• v = 98 m/s
• a = g = 9.8 m/ s^2

Using the 1st equation of motion,

v = u + at

• t = v - u / a
• t = 10 sec