Question

A firework shell is accelerate from as rest to a velocity of 50m/s over a distance of 0.250m.Calculate the acceleration how much time will it take​

Answer 1

Answer:

t = 0.01 seconds

Explanation:

u = 0 m/s, v = 50 m/s, d = 0.250 m

v² = u² + 2as

(50)² = (0)² + 2 x a x 0.250

2500 = 0.5 x a  

 a = 2500 ÷ 0.5  

a = 5000 m/s²  

v = u + at

50 = 0 + 5000 x t  

t = 50 ÷ 5000

t = 0.01 seconds

Answer 2

Answer:

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