If an object is dropped from rest, what will be its velocity after 15 seconds? (g = 9.8 m/s²)
-
A.
143 m/s
-
B.
145 m/s
-
C.
147 m/s
-
D.
149 m/s
Correct Answer:
C. 147 m/s
Explanation:
When an object is dropped from rest, its initial velocity is zero. Under the constant acceleration of gravity, which is approximately 9.8 m/s² on Earth, the velocity after a specific duration can be calculated using the kinematic formula v = gt. By multiplying the gravitational acceleration (9.8 m/s²) by the time elapsed (15 seconds), the resulting velocity is 147 m/s.
Click below to open Discussion & Feedback
0 Issues
Please
login to comment or Report Issues.