Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{2.5 \: m \: / \: {s} \: ^{2} }}}}}[/tex]
Explanation:
[tex] \star{ \text{ Given}}[/tex] :
Initial velocity ( u ) = 20 m / s
Final velocity ( v ) = 30 m / s
Time taken ( t ) = 4 second
[tex] \star{ \text{ \: To \: Find}}[/tex] :
Acceleration of a bus ( A ) = ?
We know,
[tex] \boxed{ \sf{acceleration \: ( \: a \: ) \: = \frac{final \: velocity(v) - \: initial \: velocity \: ( \: u \: )}{time \: taken \: ( \: t \: )}}} [/tex]
[tex] \longmapsto \: { \sf{ \: acceleration = \frac{30 - 20}{4} }}[/tex]
[tex] \longmapsto{ \sf{ \: acceleration = \frac{10}{4} }}[/tex]
[tex] \longmapsto{ \sf{acceleration = 2.5 \: m \: / \: {s} \: ^{2} }}[/tex]
The acceleration of bus = 2.5 m / s ²
Hope I helped!
Best regards!
~ TheAnimeGirl
