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marusya05 [52]
3 years ago
7

An ice cream truck is going 25m/s to East. It accelerates to 40m/s in the same direction over 3s. What is its acceleration

Physics
2 answers:
lina2011 [118]3 years ago
8 0
40 m/s subtracted by 25m/s is 15.
15 has to be divided by the additional 3s which is 5
The 5 miles and the seconds left behind are 2
Answer: 5m/s2
skad [1K]3 years ago
4 0
Its acceleration is 5m/s2.
The formula for acceleration is Final speed - initial speed/time.
So 40m/s - 25m/s is 15m/s.
15m/s divided by 3s is 5m/s2.
Thus the acceleration is 5m/s2
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Let's call 'up' the positive direction.
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For the stone dropped from the 50m tower:

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For the stone tossed upward from the ground:

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Divide each side by 20 :

<u>2.5 = T</u>

The stones meet in the air 2.5 seconds after the drop/toss.

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