weight) acts in a direction in which its potential energy decreases. Sample Problem 13 When a...

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weight) acts in a direction in which its potential energy decreases. Sample Problem 13 When a body is projected vertically up, its PE is twice its KE , when it is at a height h above the ground. At what height will its KE be twice the KE? of (a) 2h (b) 3 (c)- how (d) 4 how weight) acts in a direction in which its potential energy decreases. Sample Problem 13 When a body is projected vertically up, its PE is twice its KE , when it is at a height h above the ground. At what height will its KE be twice the KE? of (a) 2h (b) 3 (c)- how (d) 4 how