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GuDViN [60]
3 years ago
8

Question 2 (1 point)

Physics
1 answer:
mixer [17]3 years ago
3 0

Answer:

The initial vertical velocity is zero, u = 0 m/s

Explanation:

Given;

height of the table, h = 0.55 m

horizontal distance traveled by the tennis, x = 0.12 m

Apply the following kinematic equation;

h = ut + ¹/₂gt²

where;

u is the initial vertical velocity = 0, since the tennis ball rolled off the edge of a table.

h = ¹/₂gt²

The time to fall from the vertical height is given by;

t = \sqrt{\frac{2h}{g} } \\\\t = \sqrt{\frac{2(0.55)}{9.8} }\\\\t = 0.335 \ s

The initial horizontal velocity of the tennis is given by;

x = vₓt

vₓ = x / t

vₓ = (0.12) / (0.335)

vₓ = 0.358 m/s

Therefore, the initial vertical velocity is zero, u = 0 m/s and initial horizontal velocity, vₓ is 0.358 m/s

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gavmur [86]

Answer: K.E = 0.4 J

Explanation:

Given that:

M = 1.0 kg

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K.E = 1 × 9.81 × 0.04

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The kinetic energy of the pendulum at the lowest point is 0.39 Joule

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MrMuchimi

Answer:

Please refer to the figure.

Explanation:

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We're so good here on Brainly, we can answer it
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Answer:

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