a student pushes a 0.500 kg trolley along a frictionless surface and accelerates it from rest to 4m/s. how much kinetic energy does the trolly gain?

asked Nov 10, 2023 213k views

20 votes

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7 votes

$\\ \sf\longmapsto KE=(1)/(2)mv^2$

$\\ \sf\longmapsto KE=(1)/(2)(0.5)(4)^2$

$\\ \sf\longmapsto KE=0.25(16)$

$\\ \sf\longmapsto KE=4J$

Chris Seymour answered Nov 15, 2023

4.9k points

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