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3 years ago

A rock is thrown at an angle of 35.0° to the horizontal with a speed of 11.5 m/s. how far does it travel?

Physics

1 answer:

coldgirl [10]3 years ago

8 0

Answer:

The distance covered by the projectile is 12.68 m

Explanation:

Given;

angle of projection, θ = 35.0°

speed of projectile, v = 11.5 m/s

The distance covered by the projectile is given by the range of the projection;

R = vt

$R = \frac{v^2sin2\theta}{g} \\\\R = \frac{(11.5)^2 sin (2*35)}{9.8} \\\\R = 12.68 \ m$

Therefore, the distance covered by the projectile is 12.68 m.

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The drawing shows a large cube (mass = 28.6 kg) being accelerated across a horizontal frictionless surface by a horizontal force

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Answer:

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3 years ago

a cylindrical jar is 10cm long and has a cross sectional area of 36cm. if it is completely filled with a fluid of relative densi

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Answer:

The mass of the fluid is 72 g.

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The following data were obtained from the question:

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Next, we shall determine the volume of the cylinder. This can be achieved by doing the following:

Volume = Area x Height

Volume = 36 x 10

Volume = 360 cm³

Next, we shall determine the density of the liquid.

This can be obtained as follow:

Relative density = density of substance/density of water.

Relative density = 0.2

Density of water = 1 g/cm³

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Relative density = density of substance/density of water.

0.2 = density of fluid / 1 g/cm³

Cross multiply

Density of fluid = 0.2 x 1 g/cm³

Density of fluid = 0.2 g/cm³

Finally, we shall determine the mass of fluid as follow:

Volume = 360 cm³

Density of fluid = 0.2 g/cm³

Mass of fluid =...?

Density = mass /volume.

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Cross multiply

Mass of fluid = 0.2 g/cm³ x 360 cm³

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A rock is thrown at an angle of 35.0° to the horizontal with a speed of 11.5 m/s. how far does it travel?​

A rock is thrown at an angle of 35.0° to the horizontal with a speed of 11.5 m/s. how far does it travel?