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AonZ

  • 3 years ago

Pls i never get help for physics :P What is the force with which the ground pushes the 50kg mass?

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  1. AonZ
    • 3 years ago
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    |dw:1363676611270:dw|

  2. AonZ
    • 3 years ago
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    i worked out acceleration is 1.53ms^-2 left and Force is 76.6N

  3. .Sam.
    • 3 years ago
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    |dw:1363679086031:dw|

  4. .Sam.
    • 3 years ago
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    w=50(9.81)=490.5N \[\sum F_y=0 \\ \\ n+Fsin(40)-w=0 \\ \\ n=490.5-100\sin(40) \\ \\ n=426N\]

  5. .Sam.
    • 3 years ago
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    they are saying " the force with which the ground pushes the 50kg mass" so the force which you're gonna find is the normal force

  6. AonZ
    • 3 years ago
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    thank you :)

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