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Scrat [10]
3 years ago
13

A car is traveling at a speed of 30.0m/s encounters an emergency and comes to complete stop how much time will it take for the c

ar to stop if it decelerates -4.O m/s^2
Mathematics
1 answer:
Travka [436]3 years ago
8 0

Answer:

7.5\ seconds

Step-by-step explanation:

The Equation of motion is given by

v=u-at\\\\\ v:Final\ Velocity\\u:Initial\ Velocity\\a:acceleration\\t:time

Herev=0(as\ at\ the\ end\ car\ stops), u=30m/s,a=-4m/s^2

0=30-4t\\\\4t=30\\\\t=\frac{30}{4}\\\\t=7.5\ seconds

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