A man pushes a 50.0-kg rock across a frozen lake with a force of 70.0 N at an angle of 30° below the horizontal (as shown by arrow). What normal force does the frozen lake surface exert on the rock? (Consider Newton's Laws and the forces/components (+/-). Note he is pushing below the horizontal} O 333 N O 282 N O 245 N O 455 N 525 N

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A man pushes a 50.0-kg rock across a frozen lake with a force of 70.0 N at an angle of 30° below the horizontal (as shown by arrow).
What normal force does the frozen lake surface exert on the rock? {Consider Newton's Laws and the forces/components (+/-). Note he
is pushing below the horizontal}
O 333 N
O 282 N
O 245 N
O 455 N
O 525 N
Transcribed Image Text:A man pushes a 50.0-kg rock across a frozen lake with a force of 70.0 N at an angle of 30° below the horizontal (as shown by arrow). What normal force does the frozen lake surface exert on the rock? {Consider Newton's Laws and the forces/components (+/-). Note he is pushing below the horizontal} O 333 N O 282 N O 245 N O 455 N O 525 N
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