2 years ago

Which of the following involves an endothermic reaction?

Physics

2 answers:

pav-90 [236]2 years ago

8 0

The answer would be c

photoshop1234 [79]2 years ago

7 0

It’s c :) A chemical hand warmer

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A truck covers 47.0 m in 8.60 s while smoothly slowing down to final speed of 2.30 m/s. (a) Find its original speed.

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Given that,

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Time taken, t = 8.6 s

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Let u is the initial speed of the truck and a is its acceleration such that :

$a=\dfrac{v-u}{t}$ .............(1)

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$s=ut+\dfrac{1}{2}at^2$

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