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joja [24]
3 years ago
8

6. A stomp rocket takes 1.5 seconds to reach its maximum height

Physics
1 answer:
anyanavicka [17]3 years ago
4 0

Answer:

a) 15 m/s

b) 11.25 m

Explanation:

a) when the rocket is approaching to the maximum height , its velocity =0 (assume g= 10 m/s² downwards)

applying motion equations  upwards

V = U +at

0 = U + (-10)*1.5

U = 15 m/s  (initial velocity)

b) let maximum height be S  and V =0 (velocity at highest point)

V² = U² + 2aS

0 = 15² + 2 * (-10)*S

S = 11.25 m

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The magnitude of the net force that is acting on particle q₃ is equal to 6.2 Newton.

<u>Given the following data:</u>

Charge = -2.35 \times 10^{-6} C.

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<u>Scientific data:</u>

Coulomb's constant = 8.988\times 10^9 \;Nm^2/C^2

<h3>How to calculate the net force.</h3>

In this scenario, the magnitude of the net force that is acting on particle q₃ is given by:

F₃ = F₁₃ + F₂₃

Mathematically, the electrostatic force between two (2) charges is given by this formula:

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<u>Where:</u>

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For electrostatic force (F₁₃);

F_{13} = 8.988\times 10^9 \times \frac{(-2.35 \times 10^{-6} \times [-2.35 \times 10^{-6}])}{0.200^2}\\\\F_{13} = \frac{0.0496}{0.04}

F₁₃ = 1.24 Newton.

For electrostatic force (F₂₃);

F_{13} = 8.988\times 10^9 \times \frac{(-2.35 \times 10^{-6} \times [-2.35 \times 10^{-6}])}{0.100^2}\\\\F_{13} = \frac{0.0496}{0.01}

F₂₃ = 4.96 Newton.

Therefore, the magnitude of the net force that is acting on particle q₃ is given by:

F₃ = 1.24 + 4.96

F₃ = 6.2 Newton.

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