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iVinArrow [24]
3 years ago
9

A receiver catches a football on the 50.0 yard line and is tackled 5.42 seconds later on the 12 yard line. What

Physics
1 answer:
tester [92]3 years ago
5 0

Answer:

7.01yard/sec

Explanation:

Given parameters:

Initial position  = 50yard

Final position = 12yard

Time  = 5.42s

Unknown:

Average speed of runner  = ?

Solution:

To solve this problem;

        Speed  = \frac{distance}{time}  

Distance covered  = Initial position  - final position  = 50 - 12  = 38yards

So;

       Speed  = \frac{38}{5.42}   = 7.01yard/sec

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natita [175]

Explanation:

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a =  \frac{ - 4}{8}

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3 years ago
Carbon can only form ionic compounds
olga55 [171]

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The answer is true.

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Wind and ocean currents do not move in a straight line instead they cars as they move across the planet what is the responsible
babymother [125]

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4 years ago
What is the deceleration of the rocket sled if it comes to rest in 1.1 s from a speed of 1000 km/h? (such deceleration caused on
Wewaii [24]

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The acceleration in opposite direction is known as the deceleration. Basically the deceleration is negative value of the acceleration since the negative sign depicts its opposite in direction.

The given data:

time, t = 1.1 s

initial speed, u = 1000 km/h = \frac{2500}{9}\ m/s

final speed, v = 0 m/s

So we will be using the equation of motion, that is,

v = u + at

\therefore 0=\frac{2500}{9} + a(1.1)

\Rightarrow a=-\frac{2500}{9(1.1)}

\therefore a = - 252.52 \ m/s^2

Hence , the deceleration of the rocket is  252.52\ m/s^2.

To learn more about Attention here:

brainly.com/question/28500124

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6 0
2 years ago
A 1000 kg car’s velocity increases from 5 m/s to 10 m/s. What is the change to the car’s kinetic energy? Show your work.
katen-ka-za [31]

Answer:

k. e. = 1/2 mv^2

1/2 * 1000 * (5)^2

1/2 * 1000 * 25

12500 joules

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1/2 * 1000 * (10)^2

1/2 * 1000 * 100

50000

change in k. e. = final - initial

50000 - 12500

= 37500 joules

hope it helps you

3 0
3 years ago
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