Q35- If the velocity increase from 30m/s
to 70m/s in 20 seconds then it's
acceleration is *
O Imeter per second square
O-Imeter per second square
O meter per second square
O-2 meter per second square
Answers
Answered by
1
Answer:
acceleration = change in velocity / time
a = (v - u) / t
(70-30)/20
40/20
= 2 meter per second square
all the options are incorrect
Answered by
7
Answer :
Initial velocity = 30m/s
Final velocity = 70m/s
Time interval = 20s
We have to find acceleration of the particle
⧪ Acceleration is defined as the rate of change of velocity.
It is a vector quantity having both magnitude as well as direction.
It can be positive, negative or zero.
SI unit : m/s²
Mathematically, a = (v - u)/t
- a denotes acceleration
- v denotes final velocity
- u denotes initial velocity
- t denotes time
➙ a = (v - u)/t
➙ a = (70 - 30)/20
➙ a = 40/20
➙ a = 2m/s²
Cheers!
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