Physicshard · Past Paper
The reason why we can't walk easily on a sandy beach is:
ASand has no friction
BLarge area reduces pressure but increases reaction time
CReaction force of sand is less due to displacement
DGravity is higher on sand
✓ Correct Answer: C — Reaction force of sand is less due to displacement
When we step on sand, it gets displaced, and the reaction force provided is not sufficient or stable compared to a hard surface.
Share this question
More from Physics
- If a circuit has a voltage of 12V and total resistance of 3 Ohms, find the current.
- What is the main advantage of using an MCB over a fuse?
- An object of mass 2 kg falls from a height of 10 m. What is its potential energy loss? (g = 10 m/s^2)
- Two planets have the same mass, but the radius of planet A is twice that of planet B. The ratio of g_A to g_B is:
- Two thin lenses of power +3.5 D and -1.5 D are placed in contact. The focal length of the combination is: