Question Discussion & Solution

We have drawn the figure according to the information given in the question,

(Let the turning points as shown in the figure)

Hence, she is now 15 km East from her starting point.

According to the question, we have the following diagram,

Hence, Kritika is standing in the south-west direction with respect to her initial position.

The pattern repeat alternatively.

CONCEPT:

Force:

• The interaction which after applying on a body changes or try to changes the state of rest or state of motion is called force.
• It is denoted by F. The SI unit of force is Newton (N).

Force (F) = Mass (m) × acceleration (a)

• If more than one force is acting on a body, then the effect on the body is due to the net force.
• A stationary object on which no force is acting remains stationary.
• An object in motion continues to move with the same speed and direction when no force is acting on the object. This is Newton’s first law of motion. 

​CALCULATION:

Given:

Force = 20 N

Acceleration (a) = 2 m/s2

⇒ Force (F) = m a 

⇒ m = F/a = 20/2 = 10 kg.

So, option 4^th is correct.

Feminine means qualities or appearance of aFemale.

Similarly,

Masculine means qualities or appearance of a Male.