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a_sh-v [17]
3 years ago
15

15. A car travelling towards the right has a mass of 1332 kg and has a speed of 25 m/s. A truck is

Physics
1 answer:
swat323 years ago
5 0

Explanation:

Given that,

The mass of a car, m₁ = 1332 kg

The speed of the car, u₁ = 25 m/s (right)

The mass of a truck, m₂ = 3000 kg

The speed of the truck, u₂ = -15 m/s

The total momentum after the crash is given by :

p=m₁u₁ + m₂u₂

Put all the values,

P = 1332(25) + 3000(-15)

= −11700 kg-m/s

So, the total momentum after the crash is equal to 11700 kg-m/s and it is in the left direction.

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Answer:

120 m/s

Explanation:

Given:

v₀ = 0 m/s

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A rescue plane flying horizontally at 72.6 m / s spots a survivor in the ocean 182 m directly below and releases an emergency ki
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Answer:

547 m

Explanation:

From law of motion

s = ut + ½at²

Where "t" is Time taken to reach Earth

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182= ½ × 5.82t²

t²=( 2× 182)/ 5.82

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Lady bird [3.3K]

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