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    				| 1. | An object of mass 1 kg is made to slide down a smooth inclined plane of length 20m. If the kinetic energy possessed by the body at the bottom of the plane is 100 J, then the inclination of the planewith the horizontal is : (take g = 10 ms-2)(A) 45°(B) 37°(C) 60°(D) 30°who will give correct as well as with full solution will be marked as brainlist. don't give answer without details of answergive answer fast | 
| Answer» Gain in kinetic ENERGY = POTENTIAL energy soU=mgh sintheta100=1*10*20*SIN theta1/2= sin theta Theta =30Here sintheta is due to VERTICAL component of h | |