Answer:
I think it is D but don't count on it
B. Static friction force - static friction is the force put on an object to keep that same object at rest
374.5m/s
Explanation:
acceleration, a = 9.8m/s²
distance, s = 210m
final velocity, v = 380m/s
unknown:
Initial velocity, u = ?
Solution:
We need to apply one of the equations of motion to solve this problem. The most fitting one is:
V² = U² + 2as
U is the unknown:
U² = V² - 2as
U² = 380² - 2x 9.8 x 210
U² = 144,400 - 4,116 = 140284
U = √140284 = 374.5m/s
Learn more:
Motion brainly.com/question/5248528
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