One day, as I was walking, I found some sandy soil beside the road.
Answer:
B
Explanation:
OOf we are doing this stuff atm
So if its faster at the front and slow at the back you can tell that its not slowing down because less of a force is there however at the front there is more of a force. Friction is low which means that its not makimg much contact so no sudden change of forces thats also why its B
Answer:
Both
Explanation:
The S.I. unit of pressure is newton/meter square or pascal as both represent the same dimensional value.
Answer:
a

b

Explanation:
From the question we are told that
The spring constant is 
The maximum extension of the spring is 
The number of oscillation is 
The time taken is 
Generally the the angular speed of this oscillations is mathematically represented as

where T is the period which is mathematically represented as

substituting values


Thus


this angular speed can also be represented mathematically as

=> 
substituting values


In SHM (simple harmonic motion )the equation for velocity is mathematically represented as

The velocity is maximum when

=> 
=> 
=> 