3 years ago

How are velocity and acceleration related?

Physics

2 answers:

Arturiano [62]3 years ago

5 0

Acceleration is the rate of change of velocity

irina1246 [14]3 years ago

5 0

Answer:

<h3>Acceleration is the rate of change of velocity. (when velocity changes -> acceleration exists) If an object is changing its velocity, i.e. changing its speed or changing its direction, then it is said to be accelerating. Acceleration = Velocity / Time (Acceleration)</h3><h3 />

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A loaf of bread has a mass of 2000g and a volume of 500 cm3. what is the density of the bread

Yuki888 [10]

Answer:

4g/cm^3

Explanation:

density = mass / volume

= 2000 / 500

= 4g/cm^3

7 0

3 years ago

A fisherman casts his lure at an angle of 33 degrees above the horizontal. The lure reaches a maximum height of 2.3 m. Assuming

omeli [17]

Answer:

12.32 m/s

Explanation:

Using the formula of maximum height of a projectile,

H = u²sin²Ф/2g................... Equation 1

Where H = maximum height, u = initial velocity, Ф = angle of projection, g = acceleration due to gravity

make u the subject of the equation

u = √(2Hg/sin²Ф)............ Equation 2

Given: H = 2.3 m, Ф = 33°, g = 9.8 m/s²

Substitute into equation 2

u = √[(2×2.3×9.8)/sin²33°]

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u = 45.08/0.297

u = √(151.785)

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3 years ago

Two 90.0-kilogram people are separated by 3.00 meters. What is the magnitude of the gravitational force that one person exerts o

VARVARA [1.3K]

Answer:

the magnitude of gravitational force is 6 x 10⁻⁸ N.

Explanation:

Given;

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distance between them, r = 3.0 m

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$F = \frac{Gm_1m_2}{r^2} \\\\$

where;

G is gravitational constant = 6.67 x 10⁻¹¹ Nm²/kg²

$F = \frac{Gm_1m_2}{r^2} \\\\F = \frac{6.67\times 10^{-11} \times \ 90 \ \times \ 90}{3^2} \\\\F = 6\times 10^{-8} \ N$

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3 years ago

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3 years ago

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Ilia_Sergeevich [38]

11m/s Bc of the fact that he sees her running at 11m/s

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3 years ago