due to more friction between sand and feet it is difficult to walk because sand has more contact forces upon feet so it is difficult to walk.
33) It is more difficult to walk on a sandy road than on a concrete road because
Answer is:
the friction between sand and feet is less than that between concrete and feet
Explanation:
Related General Physics MCQ with Answers
Answer is:
14 m/s
Explanation:
The maximum speed for the overturn of a car moving on a circular track is given by, v=underroot(co-efficient of friction X radius X acceleration due to gravity) v=underroot(0.2 X 100 X 9.8) v=14m/s.
Answer is:
amplitude
Explanation:
Here v=n*wavelenth so n, v, wavelenth are dependent on each other so independent is amplitude.
Answer is:
intensity of illumination
Explanation:
The SI unit of intensity of illumination (illuminance) is the lux. An illuminance of 1.0 lux is produced by 1.0 lumen of light shining on an area of 1.0 m^2.
Answer is:
interference
Explanation:
When two different waves having different velocities are overlap with each other and produce a new one it is called Interference. In the case of rain water it happens.