Observe the forces acting on the box A. Box A will move towards which direction? Why?

Forces are acting in the opposite direction. The force acting towards left side is greater than the force acting towards right side. Hence the resultant force will be the difference between the two i.e. 5 N acting towards left. So the box will move towards left.

Observe the forces acting on the boxes B. Box B will _____.

The resultant force is the net sum of all the forces acting on the body. The forces acting on the left side are equal and opposite to the force acting on the right side. Hence the resultant force is zero. Therefore, box B will not move.

Observe the forces acting on the box C. Box C will move towards _____.

If two forces act on an object in the same direction, the net force is equal to the sum of the two forces i.e the net force of box C is 17 N . Both the forces are acting towards the right side so box C move towards the right direction.

Observe the forces acting on the boxes A, B, and C. Net forces on Boxes A, B and C are _____, _____ and _____.

Given: Force acting towards left side= 8 N Force acting towards right side= 3 N Net force will be the subtraction of forces, as forces are acting in the opposite direction. Net force on Box A = 8 N - 3 N = 5 N Given: Both the forces acting towards the centre of the box B. Net force will be subtraction of forces as forces are acting in opposite direction. Here net force is zero. Net force= ( 4 N + 3 N ) - 7 N = 0 Given: Both the forces are acting on the same side. Net force will be addition of forces as the forces are acting in one direction. Net force= ( 8 N + 6 N ) + 3 N = 17 N

E M B I B E

Expanded Universal Science>Force, Pressure and Sound>Chapter 11 - Force and Pressure>TRACK YOUR PROGRESS

Anita Sood, Anupama Bhandari, Madhabi Bose and, Shelly Wadhwa Solutions for Exercise 3: TRACK YOUR PROGRESS

Author:Anita Sood, Anupama Bhandari, Madhabi Bose & Shelly Wadhwa

Anita Sood Science Solutions for Exercise - Anita Sood, Anupama Bhandari, Madhabi Bose and, Shelly Wadhwa Solutions for Exercise 3: TRACK YOUR PROGRESS

Attempt the free practice questions from Exercise 3: TRACK YOUR PROGRESS with hints and solutions to strengthen your understanding. Expanded Universal Science solutions are prepared by Experienced Embibe Experts.

Questions from Anita Sood, Anupama Bhandari, Madhabi Bose and, Shelly Wadhwa Solutions for Exercise 3: TRACK YOUR PROGRESS with Hints & Solutions

MEDIUM

8th CBSE

IMPORTANT

Expanded Universal Science>Chapter 11 - Force and Pressure>TRACK YOUR PROGRESS>Q 3

Observe the forces acting on the box A.

Question Image

Box A will move towards which direction? Why?

MEDIUM

8th CBSE

IMPORTANT

Expanded Universal Science>Chapter 11 - Force and Pressure>TRACK YOUR PROGRESS>Q 3

Observe the forces acting on the boxes B.

Question Image

Box B will _____.

MEDIUM

8th CBSE

IMPORTANT

Expanded Universal Science>Chapter 11 - Force and Pressure>TRACK YOUR PROGRESS>Q 3

Observe the forces acting on the box C.

Question Image

Box C will move towards _____.

MEDIUM

8th CBSE

IMPORTANT

Expanded Universal Science>Chapter 11 - Force and Pressure>TRACK YOUR PROGRESS>Q 3

Observe the forces acting on the boxes A, B, and C.

Question Image

Net forces on Boxes A, B and C are _____, _____ and _____.

MEDIUM

8th CBSE

IMPORTANT

Expanded Universal Science>Chapter 11 - Force and Pressure>TRACK YOUR PROGRESS>Q 4

The pressure exerted by a solid if it exerts $700 N$ of force on an area of $7 m^{2}$ is $K Pa$ . Then what is the value of $K$ ?

MEDIUM

8th CBSE

IMPORTANT

Expanded Universal Science>Chapter 11 - Force and Pressure>TRACK YOUR PROGRESS>Q 5

A pressure of $60 Pa$ acts on a smooth surface of area $2 m^{2}$ . Calculate the force applied on the surface.
Give the answer in units of newtons. Suppose the answer is $2 N$ , just type $2 .$

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