Question

calculate the acceleration of a bus if it increases its velocity from 10m/s to 70m/s within 1 minute

Answer 1

Explanation:

Given:-

• Initial velocity (u) = 10m/s
• Final velocity (v) = 70m/s
• Time (t) = 1min = 1×60 = 60 seconds

To Find:

• Acceleration (a)

Formula:-

$\tt \bold \red{a = \frac{v - u}{t} }$

Now put the value in formula,

$\tt \bold \blue{a = \frac{70 - 10}{60} } \\ \\ \tt \bold \blue{a = \frac{60}{60} } \\ \\ \tt \bold \blue{a = 0 \frac{m}{ {s}^{2} } \: or \: 0m {s}^{ - 2} }$

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Answer 2

Answer:

Acceleration is 1 m/s2

Explanation:

Initial velocity u= 10m/s

Final velocity v= 70m/s

Time. t= 1 min

= 60 seconds

Acceleration a= (v-u) / t

a= (70m/s-10m/s)/ 60 s

a= 60m/s/60 s

a= 1 m/s2