A boy pushes a box of mass 2 kg with a force F → = 20 i ^ + 10 j ^ N on a frictionless surface. If the box was initially at rest, then _______ m is displacement along the x -axis after 10 s

Question

A boy pushes a box of mass 2 kg with a force F → = 20 i ^ + 10 j ^ N on a frictionless surface. If the box was initially at rest, then _______ m is displacement along the x -axis after 10 s,

MARKS App · Accepted Answer

F → = 20 i ^ + 10 j ^ a → = F → m = 20 i ^ + 10 j ^ 2 ⇒ 10 i ^ + 5 j ^ ∴ s → = 1 2 a → t 2 = 1 2 10 i ^ + 5 j ^ × 10 2 ⇒ 50 10 i ^ + 5 j ^ m ∴ Displacement along x -axis ⇒ 50 × 10 ⇒ 500 m

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