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3 years ago

If you walk at a speed of 3 meters per second, how far will you walk in 11 seconds?

Physics

2 answers:

Dvinal [7]3 years ago

7 0

Answer:

33 meters

Explanation:

If you walk at 3 mps, 3 meters * 11 seconds = 33

egoroff_w [7]3 years ago

5 0

Answer:

33 meters

Explanation:

if you walk 3 meters a second and you walk for 11 seconds to find the answer you will multiply.

seconds walked 1 2 3 4 5 6 7 8 9 10 11

meters walked 3 6 9 12 15 18 21 24 27 30 33

so basically you multiply 3 times 11 and get 33

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Which material would you take, steel or bricks to design a bridge? Why?

Vesna [10]

Answer:

steel

Explanation:

steel because steel has more power to hold something up, where bricks arent as stable

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2 years ago

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A motorist is driving at 20m/s when she sees that a traffic light 200m ahead has just turned red. She knows that this light stay

yuradex [85]

Answer:

5.71428571422 m/s

Explanation:

u = Initial velocity = 20 m/s

v = Final velocity

s = Displacement

a = Acceleration

Time taken = 15-1 = 14 s

Distance traveled in 1 second = $20\times 1=20\ m$

$s=ut+\frac{1}{2}at^2\\\Rightarrow 200-20=20\times 14+\frac{1}{2}\times a\times 14^2\\\Rightarrow a=\frac{2(180-20\times14)}{14^2}\\\Rightarrow a=-1.02040816327\ m/s^2$

$v=u+at\\\Rightarrow v=20-1.02040816327\times 14\\\Rightarrow v=5.71428571422\ m/s$

The speed as she reaches the light at the instant it turns green is 5.71428571422 m/s

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3 years ago

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3 years ago

A 7-kg bowling ball moving at 4 m/s strikes a 1 kg bowling pin. If the ball slows to 2 m/s in 0.05 s, how much force does it exe

iren [92.7K]

Answer:

280 N

Explanation:

acceleration = v2-v1 / time taken = (2-4 )/ 0.05 = -40 m/s^2 ( neg sign indicates slowing down )

force exerted = ma = 7 kg x -40 m/s^2 = - 280 N ( neg sign means opposite direction of initial velocity )

since the 7 kg ball is slowing down, the direction of force will be opposite of the initial velocity , and it will be 280 N

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evablogger [386]

It would go to the positive charge im like 99% sure of that

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