NCERT Exercise Solutions Ch-6 How Forces Affect Motion | Class 9 Science Exploration | Tarif Sir

Class 9 Science Chapter 6 "How Forces Affect Motion" (New NCERT Exploration) - solving every NCERT Back Exercise question, "Revise Reflect and Refine," step by step. If you have not watched the full 5-lecture series on this chapter yet, watch that first (link in the "i" button) - this solutions video will then feel effortless. What You'll Learn: Why net force is zero when velocity is constant or an object is at rest Applying Newton's Second Law (F = ma) to real situations - tables, balls, boats Newton's Third Law with everyday examples - loaded vs empty handcarts, a sailor jumping off a boat, a bar magnet and a compass needle Reading acceleration-mass and velocity-time graphs to find force Numericals on stopping force (bullet in a wooden block), impact time (a football kick), and combined acceleration when two masses are pulled together Common mistakes to avoid - unit conversion (km/h to m/s, g to kg) and correct sign conventions for deceleration Boards Covered: CBSE, RBSE, MPBSE, HPBSE, UBSE For Mathematics Subscribe    / @sanyambhayana-9th10th   About the Teacher: Tarif Sir has been teaching Science to Class 9 and Class 10 students, with a background in coaching IIT JEE and NEET Chemistry. His teaching style focuses on building conceptual clarity rather than rote memorization, so that students are prepared not just to answer NCERT questions but to apply the same logic to any question asked in the board exam. Every solutions video is designed to reinforce the reasoning behind the formula, not just the formula itself, so that Physics starts making intuitive sense in everyday situations. Timestamps (approximate, please verify against the uploaded video): 0:00 Introduction 1:06 Q1 - Frictional force on a table moving at constant velocity 3:49 Q2 - Ball on a frictionless surface, net force scenarios 6:27 Q3 - Two blocks P and Q, net force comparison 8:10 Q4 - Snake boat race, net force from oarsmen 11:34 Q5 - Direction of net force and acceleration 13:35 Q6 - Position-time graphs of four objects 16:41 Q7 - Sailor jumping off a boat, Newton's Third Law 18:18 Q8 - Landing mat in high jump, momentum and time 20:02 Q9 - Loaded vs empty handcart collision 23:52 Q10 - Acceleration-mass graph to force-mass graph 26:30 Q11 - Velocity-time graph, calculating force 29:20 Q12 - Bullet penetrating a wooden block, stopping force 34:42 Q13 - Football kick, time of contact 39:09 Q14 - Object on a rough patch, distance before rest 43:50 Q15 - Tractor pulling a harrow and a trolley, combined acceleration 48:23 Q16 - Bar magnet and compass needle, Newton's Third Law This video covers the complete NCERT Exploration back exercise for Class 9 Science Chapter 6, How Forces Affect Motion, with detailed numericals on Newton's Laws of Motion, force, mass, acceleration, and momentum - built for board exam preparation across CBSE, RBSE, MPBSE, HPBSE, and UBSE. If this helped you understand the chapter better, please subscribe to the channel, share this video with your classmates, like the video, and leave a comment below. class 9 science,ncert exploration class 9,how forces affect motion,force and laws of motion class 9,newtons third law,newtons second law,ch 6 class 9 science ncert solutions,class 9 physics,tarif sir,tarif bhayana,cbse class 9 science,force and motion ncert solutions,newtons laws of motion class 9,class 9 science chapter 6,ncert back exercise solutions,rbse class 9 science,mpbse class 9 science