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natima [27]
3 years ago
15

a ball was projected in such a way that it attained the maximum horizontal distance with a velocity of 20m/s calculate the verti

cal distance reached​
Physics
1 answer:
Eduardwww [97]3 years ago
7 0

Answer:

80m

Explanation:

u=20,R=?,sin theta=1,g=10

R=u²sin2theta/g

R=20²x2/10

R=400x2=800/10

R=80m

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kicyunya [14]
Your answers are correct
5 0
4 years ago
A basketball player jumps straight up with a speed of 14 m/s. How high did the player jump?
alexira [117]

Answer:

<em>The basketball player jumped 10 m high.</em>

Explanation:

<u>Vertical Launch Upwards </u>

In a vertical launch upwards, an object is launched vertically up without taking into consideration any kind of friction with the air.

If vo is the initial speed and g is the acceleration of gravity, the maximum height reached by the object is given by:

\displaystyle h_m=\frac{v_o^2}{2g}

The basketball player jumps up with a speed of vo=14 m/s. The maximum height is:

\displaystyle h_m=\frac{14^2}{2*9.8}

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7 0
3 years ago
What is the gravitational force between Earth and a 10 kg object on Earth’s surface?
4vir4ik [10]

Answer:

The force between the Earth and the object is, F = 9.61 x 10⁻¹² N

Explanation:

Given data,

The mass of the Earth, M = 5.9 x 10²⁴ kg

The mass of the object, m = 10 kg

The gravitational force between the earth and the object is given by the formula,

                         F = G Mm/R²

Substituting the given values in the above equation,

                         F = 6.673 x 10⁻¹¹ x 5.9 x 10²⁴ x 10 / 6.4 x 10⁶

                            =  9.61 x 10⁻¹² N

Hence, the force between the Earth and the object is, F = 9.61 x 10⁻¹² N

6 0
3 years ago
was an American writer, poet, editor, and literary critic. Poe is best known for his poetry and short stories
Art [367]

Answer:

poet

Explanation:

4 0
3 years ago
The water that powers the generators enters and leaves the system at a low speed (thus we can neglect its change of kinetic ener
madam [21]

Answer:

Explanation:

Let density of water be ρ .

During flow , volume of water flowing per second is constant

loss of P. E per unit volume  = ρ gh , 83.5 % is lost

Gain of K E per unit volume = 1/2  ρ v²

83.5 % of mgh =   ρ 1/2  ρ v²

1/2  ρ v² =  .835 x 9.8

v² =  2 x .835 x 9.8

= 16.366

v = 4.04 m /s

4 0
4 years ago
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