Physicsmedium · Past Paper
The velocity of a body increases from 5 m/s to 15 m/s while covering a distance of 20m. Find the acceleration.
A5 m/s^2
B10 m/s^2
C2 m/s^2
D4 m/s^2
✓ Correct Answer: A — 5 m/s^2
v^2 = u^2 + 2as => 15^2 = 5^2 + 2 * a * 20 => 225 - 25 = 40a => a = 5.
Share this question
More from Physics
- If a body moves 4m North and then 3m South, its displacement is:
- An object is placed at a distance of 12 cm from a concave mirror of focal length 8 cm. Find the image distance.
- Lenz's Law is a consequence of the law of conservation of:
- The velocity of a falling object in a vacuum depends on:
- A ray of light passes through three media with refractive indices n1, n2, and n3. If n1 > n2 > n3, which medium has the smallest angle of refraction?