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2 years ago

A soccer ball takes 20 s to roll 10 m. What is the average speed of the soccer ball?

Physics

2 answers:

polet [3.4K]2 years ago

8 0

Hi! Let's see.

<h3><u>TOPIC: Uniform Rectilinear Motion.</u></h3>

Explanation:

Data:

Distance(d) = 10 m
Time(t) = 20 s
Speed(v) = ?

==================================================================

Use speed formula in URM:

$\boxed{\boxed{\bold{v=\frac{d}{t}}}}$

Replace with the data:

$\boxed{v=\frac{10m}{20s}}}}$

It divides:

$\boxed{\bold{v=0.5\frac{m}{s}}}$

Answer: The average speed of the soccer ball is <u>0.5m/s.</u> (meters per seconds)

Cordially Alejanndraax. Greetings!

Over [174]2 years ago

3 0

Answer:

0,5 m/s²

Explanation:

v = d /t

v = 10 / 20

v = 0,5 m/s²

<h3>The velocity of the ball is 0,5 m/s²</h3>

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Answer:

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2 years ago

Read 2 more answers

The treasure map gives the following directions to the buried treasure

iren2701 [21]

Answer:

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2 years ago

A ball is thrown with a speed of 20 m/s at an angle of 40o above the horizontal from the top of a 22-m tall building.

MrRissso [65]

Answer:

(a). The distance is 49.79 m.

(b). The speed of the ball is 24.39 m/s.

Explanation:

Given that,

Speed = 20 m/s

Angle = 40°

Height = 22 m

Time = 3.25 sec

(a). We need to calculate the distance

Using formula of distance

$d=u\cos\theta\times t$

Put the value into the formula

$d=20\cos40\times3.25$

$d=49.79\ m$

(b). We need to calculate the horizontal velocity

Using formula of velocity

$v_{x}=u\cos\theta$

Put the value into the formula

$v_{x}=20\times\cos40$

$v_{x}=15.3\ m/s$

We need to calculate the vertical velocity

Using equation of motion

$v_{y}=u\sin\theta-gt$

Put the value into the formula

$v_{y}=20\sin40-9.8\times3.25$

$v_{y}=-19\ m/s$

Negative sign shows the opposite direction.

We need to calculate the speed of ball

Using formula of speed

$v=\sqrt{v_{x}^2+v_{y}^2}$

$v=\sqrt{(15.3)^2+(19)^2}$

$v=24.39\ m/s$

Hence, (a). The distance is 49.79 m.

(b). The speed of the ball is 24.39 m/s.

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2 years ago

What net force would be necessary to cause a block of wood with a mass of 2.5 kg to accelerate at a rate of 3.0 m/s2

charle [14.2K]

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question

mass = 2.5 kg

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We have

force = 2.5 × 3.0 = 7.5

We have the final answer as

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2 years ago

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Answer:

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Explanation:

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