Physics · Forces and Motion
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When an object starts from rest, then the first equation of motion is given as:
- A
v = u + at
- B
v = u - at
- C
v = u + 1/2 at
- D
v = √(at)
The first equation of motion is:
v = u + at
Where:
- v = final velocity
- u = initial velocity
- a = acceleration
- t = time
If an object starts from rest, its initial velocity (u) is 0. Therefore, the equation simplifies to:
v = at
So the correct answer is v = u + at, which simplifies to v = at when u = 0.
The first equation of motion is:
v = u + at
Where:
- v = final velocity
- u = initial velocity
- a = acceleration
- t = time
If an object starts from rest, its initial velocity (u) is 0. Therefore, the equation simplifies to:
v = at
So the correct answer is v = u + at, which simplifies to v = at when u = 0.
This is not correct because it is wrong equation in any case.
This is not correct as it is is more near to 2nd equation of motion.
This is not correct as it is not any equation of motion.
Tagged under Physics · Forces and Motion · 2024