to enroll in courses, follow best educators, interact with the community and track your progress.
Enroll
382
Kinematic Equations #2 & Free Fall #1 (In Hindi)
460 plays

More
Through this lesson we'll cover some important portion of kinematics and dynamics in short and also we'll discuss a lot questions related to each topic.

Kumar Ketan is teaching live on Unacademy Plus

U
good class
velocity of man with respect to bend is equal to v y route to ICAP +v y root 2 - a t Jac p Mein Hame X component ICAP Lena tha t o to buy component component Jacob se compare Karke time nikalne Ke Piche reason kya tha kyu Mana
Sir thank you so much😘😘😘
1. ne

3. CRAs4 Physics course for IIT JEE Kinematics & Dynamics 1D Non-Accelerated Motion 1D Accelerated Motion Force Frictional Force Newton's Law of Motion Relative Motion

4. Kinematics equations for one dimensional motion If u- initial velocity, v - final velocity, a constant acceleration, S displacement magnitude or distance covered, then following relations are called kinematics equations

5. v-u+ at Also average velocity is given by: Va u v)/2 The distance covered in nth second is given by: S-ua(2n-1)/2

6. When the particle starts from rest, its initial velocity is zero i.e. u 0 The acceleration a is +VE when the particle speeds up and a is -VE when the particle speed down (retards)

7. A horizontal wind is blowing with a velocity v towards north-east. A man starts running towards north with acceleration a. The time after which man will feel the wind blowing towards east is (a) v/a (c) v/V2a (b) V2v/a (d) 2v/a

8. (j

9. um

10. It appears due east when, at 0 0

11. FREE FALL A body falling under the action of gravity is known as freely falling body. The motion is known as free fall. Let us consider a body at height H. Two cases arise. (1) Body is dropped (u-0) (2) Body is thrown with some initial velocity

12. (b) When body is thrown downwards with some initial velocity Let the initial velocity be u, a - g, then (2)v2 - u2 +2gH (3)s - ut h gt2

13. (b) Time taken for downward motion Using v - u gt, we find Or u gt or t-u/g u.2)

14. 1.2 sec :0.4 sed 0.8 sec u 12 m/s

15. We take u at 0.8 sec h=ut + gt2 = 4 x 0.4- 10 (0.4)2 1.6-5 (0.16) = 1.6-0.8 = 0.8 m

16. h -u2 g(2t-1) - 0 10(2t-1)/2 35 5 (2t -1) 7 2t-1 t 4 sec