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marysya [2.9K]
3 years ago
15

A train is travelong at 22 m/s when the condutor gets a radio call about a car stalled on the tracks. He hits the emergancy brak

e and the train comes to a halt in 135 sevonds several meters before the car. What was the train's accleration during the emergency?
Physics
1 answer:
mylen [45]3 years ago
5 0

Answer:

final velocity = 0

because the train stoped

so,

  • acceleration = (v - u) ÷ t
  • acceleration = (0 - 22) ÷ 135
  • acceleration = -22 ÷ 135

  • acceleration = -0.162 m/s²

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BabaBlast [244]

Answer:

m = 4.4 × 10³ kg

Explanation:

Given that:

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The amount of mass that provides this energy can be determined by using the formula:

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m = \dfrac{4.0 \times 10^{20} }{(3\times 10^8)^2}

m = 4.4 × 10³ kg

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S_A_V [24]

Answer:

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What is indicated by the slope of an acceleration vs. time graph?
Luba_88 [7]

Answer:

Option A is tge correct answer.

Explanation:

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<em><u>hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em>

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