. A 40kg boy jumps from a height of 4m on to a plate form mounted on springs. As the springs compress, the plate form is pushed down a maximum distance of 0.2m below its initial position, and it then rebounds. What is the boy's speed at the instant the plate form is depressed 0.1m. [Ans: 7.9m/s 1

. A 40kg boy jumps from a height of 4m on to a plate form mounted o

1.	. A 40kg boy jumps from a height of 4m on to a plate form mounted on springs. As the springs compress, the plate form is pushed down a maximum distance of 0.2m below its initial position, and it then rebounds. What is the boy's speed at the instant the plate form is depressed 0.1m. [Ans: 7.9m/s 1
Answer» Final speed of the platform at X = 0.1 m is 7.8 m/sExplanation:As we know that the platform will PERFORM SHMhere we know by ENERGY conservationso we haveso we havenow again by energy equation#LearnTopic : Energy conservationbrainly.in/question/11826049

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