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PolarNik [594]
3 years ago
8

A driver traveling at 40 m/s slams on his brakes the vehicle completely stops in five seconds how far to the vehicle go while st

opping
Physics
2 answers:
Goshia [24]3 years ago
4 0

Answer:

200m

Explanation:

Velocity = displacement/time

V = s/t

Given

Velocity = 40m/s

Time = 5 secs

Therefore

40 = S/5

Cross multiply

S = 40 x 5

S = 200m

The vehicle travelled 200m before stopping

lara [203]3 years ago
3 0

Answer: 100 m

Explanation:

Initial speed(u) = 40 m/s

Final speed(v) = 0 m/s

Acceleration = v-u/t

=> 0-40/5

=> 8 m/s^2

Displacement= s

=> 2as = v^2-u^2

=> 2(-8)(s) = 0 - (40)^2

=> -16s = -1600

s = 100 m

We can say the vehicle move 100 meters before stopping.

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He can throw it away from himself.

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Newtons Third Law says that everything has an equal, yet opposite reaction on other objects.

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An object is dropped from a height of 75.0 m above ground level. (a) Determine the distance traveled during the first second. (b
lys-0071 [83]

Answer:

a)Distance traveled during the first second = 4.905 m.

b)Final velocity at which the object hits the ground = 38.36 m/s

c)Distance traveled during the last second of motion before hitting the ground = 33.45 m

Explanation:

a) We have equation of motion

             S = ut + 0.5at²

     Here u = 0, and a = g

              S = 0.5gt²

    Distance traveled during the first second ( t =1 )

              S = 0.5 x 9.81 x 1² = 4.905 m

   Distance traveled during the first second = 4.905 m.

b)  We have equation of motion

            v² = u² + 2as

      Here u = 0, s= 75 m and a = g

           v² = 0² + 2 x g x 75 = 150 x 9.81

           v = 38.36 m/s

      Final velocity at which the object hits the ground = 38.36 m/s

c) We have S = 0.5gt²

                   75 = 0.5 x 9.81 x t²

                    t = 3.91 s

   We need to find distance traveled last second

   That is

          S = 0.5 x 9.81 x 3.91² - 0.5 x 9.81 x 2.91² = 33.45 m

   Distance traveled during the last second of motion before hitting the ground = 33.45 m

       

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3 years ago
On which surface (ground or marble) will thermal<br> energy be reflected more?
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I’m pretty sure it’s ground but I might be wrong. Sorry
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How long will it take 24 C of charge to flow in a 6.0 A circuit?<br> O 0.25 S<br> O 4.05<br> o 185
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Explanation:

charge=24

current =6.0

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formula

c harge=current ×time

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24/6.0=time

4.05second=time

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