Mohak Tandon Asks – “ “Is the acceleration due to gravity different in south pole and north pole?” Answer: As per theory, acceleration due to gravity changes with altitude, depth and latitude. If we consider that the variation of g with latitude is caused by rotation of earth only, then the value of g will be same for both [...]
If maximum height attained by a body projected vertically upward is equal to two times magnitude of acceleration , then its time of flight is ………. ? (Divya posted) Answer: If you take g=10 m/s2 then H=20m At max height, v=0 H=vt- 0....
A short is fired from a gun on the top of a hill 90m high with velocity 80m/s at an angle of 30 degree with the horizontal. Find the horizontal distance between the vertical line through the gun and the ponit where the shot strikes the ground? (Shilpa asked this question) Answer: Take Sy= -90m … Continue reading A Numerical Problem from Projectile Motion
Devender posted this question: A plane is flying horizontally at 98m/s and releases an object, which reaches the ground in 10s. the angle made by it while hitting the ground is (a) 55 degree (b) 45 degree (c) 60 degree (d) 75 degree
3 and 5 Marks Questions It is very much essential to completely solve all the exercises (including the additional exercises) given in NCERT text book. What are errors? Describe the propagation of errors in addition subtraction multiplication and division. What do you mean by the principle of homogenity of dimensions? Describe the applications of dimensional … Continue reading Physics Revision Help for Half Yearly Exam Class XI CBSE & KVS
Introduction to motion Introduction to motion (part 2) Introduction to motion (part 3) Projectile motion (part 1) Projectile motion (part 2) Projectile motion (part 3) Projectile motion (part 4) Projectile motion (part 5) Projectile motion (part 6) Projectile motion (part 7) Projectile motion (part 8) Projectile motion (part 9) Projectile motion (part 10) 2 dimensional … Continue reading Learn Physics Through Videos (Khan Academy)