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3 years ago

a body of mass 3kg is dropped from a height 15m.what would be the velocity of the body at 10m of height? take g=10m/s

Physics

1 answer:

mixer [17]3 years ago

5 0

Answer:

Explanation:

using v^2 = u^2 +2AS here : v = ? , u = 0 , a = 10 , s = 10. v*v = 0 + 2 (100) v^2 = 200 v = $\sqrt{200$ therefore , v = 14.14 m/s

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3 years ago

An open rectangular tank 1 m wide and 2 m long contains gasoline to a depth of 1 m. If the height of the tank sides is 1.5 m, wh

lara [203]

Answer:

$a_y = 4.9\ m/s^2$

Explanation:

Given,

Width of rectangular tank, b = 1 m

Length of the tank, l = 2 m

height of the tank, d = 1.5 m

Depth of gasoline on the tank, h = 1 m

$\dfrac{dz}{dy}=-\dfrac{1.5-1}{1}$

$\dfrac{dz}{dy}=-0.5$

The differential form with the acceleration

$\dfrac{dz}{dy}=\dfrac{-a_y}{a_z + g}$

$-0.5=-\dfrac{a_y}{a_z + g}$

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g = 9.8 m/s²

a_y is the horizontal acceleration of the gasoline.

$0.5=\dfrac{a_y}{0 + 9.8}$

$a_y = 9.8\times 0.5$

$a_y = 4.9\ m/s^2$

Hence, Horizontal acceleration of the gasoline before gasoline would spill is equal to 4.9 m/s²

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3 years ago

a body of mass 3kg is dropped from a height 15m.what would be the velocity of the body at 10m of height? take g=10m/s​

a body of mass 3kg is dropped from a height 15m.what would be the velocity of the body at 10m of height? take g=10m/s