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Kobotan [32]
3 years ago
15

A cannon Is pointed Upward 30 degrees and fires a cannonball with a speed of 100m/sec  what is the component of the cannon balls

velocity parallel to the groud
Physics
1 answer:
Kamila [148]3 years ago
6 0

Answer:

86.6 m/s

Explanation:

vₓ = v cos θ

vₓ = 100 m/s cos 30°

vₓ = 86.6 m/s

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tatyana61 [14]

The final velocity becomes 31.48 m/s

<u>Explanation:</u>

Given:

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5 0
3 years ago
A ball is dropped from rest at the top of a 6.10 m
natita [175]

Answer:

n = 5 approx

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and

\frac{v_1}{v} = \sqrt{\frac{h_1}{6.1} }

h₁ is height up-to which the ball bounces back after first bounce.

From the two equations we can write that

e = \sqrt{\frac{h_1}{6.1} }

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Taking log on both sides

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n = 5 approx

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Speed = Distance ÷ Time so divide .5 km by .1h. .5 km÷.1h=5 km/h, so the answer is B. 5km/h.
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