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3 years ago

1. If a cars speed increases from 18 m/s to 20 m/s in 15 seconds, its acceleration is how much :

Mathematics

1 answer:

Paraphin [41]3 years ago

8 0

Answer: Q1: 0.13m/s^2.

Q2: 1.2m/s^2

Q3: C

Q4: 2.8m/s

Q5: 0.63m/s

Q6: 2040km

Step-by-step explanation: acceleration a = (v-u)/t

Q1: a =(20-18)/15

a= 0.13m/s^2

Q2: a =(0.12-0)/0.1

a= 1.2m/s^2

Q3: None

Q4: V= distance/time

V= 12.6/4.5

V= 2.8m/s

Q5: v=2.5/4

v= 0.63m/s

Q6: distance d = v*t

d =85*24

d= 2040km

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