Guys, some doubts I had, PLEASE SOLVE!!!! 1. A thief jumps from the upper storey of a house with a load on its back. What is the force of the load on his back when the theif is in air? do i just write F = 9.8 m or is there something else to it that Im missing? 2. What is the work done in blowing a soap bubble of radius r and tension T? Just confirming, it is 2*T*pi*r^2? 3. Derive an expression for gravitation field intensity due to point mass at distance r from it. Also show that it is equal to the free acceleration of mass placed on it? WHAT IS THIS? 4.When a car takes a turn, what provides centripetal acceleration? is it the outermost tyre? Please confirm 5. What is the angle between the directions of velocity and acceleration at the highest point of the trajectory of a projectile? Please respond!! thanx guys
Posted on: Sun, 24 Nov 2013 18:25:43 +0000
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