A tired squirrel (mass of 1kg) does push-ups by applying a force to elevate it's center of mass by 5cm. Determine the number of push-ups which a tired squirrel must do in order to do a mere 5.0joules of work.

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    to strengthen his arm and chest muscles, an 82-kg athlete who is 2.0 m tall is doing push ups. his center of mass is 1.15 m from the bottom of his feet, and the centers of his palms are 30.0cm from the top of his head. find the force that the floor exerts

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  4. physics

    A tired squirrel (mass of 1kg) does push-ups by applying a force to elevate it's center of mass by 5cm. Determine the number of push-ups which a tired squirrel must do in order to do a mere 5.0joules of work.

  5. PHYSICS

    A person whose weight is W=584 N doing push-ups. Find the normal force exerted by the floor on each hand each foot, assuming that the persons holds this person |=central gravity foot arm -------|-------- .840m .410m

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  9. physics

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  13. AP Physics - Static Equilibrium

    A man doing push-ups pauses in the position shown in the figure. His mass is 75-kg. Determine the normal force exerted by the floor on each hand and on each foot. img145.imageshack.us/img145/7130/picture1n.png (copy into url bar) a = 40 cm b = 95 cm c = 30

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    2._____ training must target the muscle group that is needed for the activity you are training for. the best way to train your body to be able to do more push ups is to do push ups. (1 point) muscular endurance. cardio strength. aerobic. speed.

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  22. PHYSICS

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  30. Physics

    A person whose weight is W = 658 N is doing push-ups. From his feet to his center of gravity he is 0.840m and from the center of gravity to his hands is 0.410m. Find the normal force exerted by the floor on (a) each hand and (b) each foot, assuming that

  31. Physics

    A man doing push-ups pauses in the position shown in the figure . His mass = 68 kg. Determine the normal force exerted by the floor on each hand. Determine the normal force exerted by the floor on each foot.

  32. Physics

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  33. physics/math

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  34. physical

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  36. Physics

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  37. Physics 141

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  50. physics

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  52. physics

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  55. physics

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  56. PHYSICS

    A person whose weight is W=584 N doing push-ups. Find the normal force exerted by the floor on each hand each foot, assuming that the persons holds this person |=central gravity foot arm -------|-------- .840m .410m

  57. Laws of Motion

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  59. Physics

    The drawing shows a person (weight W = 592 N, L1 = 0.841 m, L2 = 0.410 m) doing push-ups. Find the normal force exerted by the floor on each hand and each foot, assuming that the person holds this position. force on each hand N force on each foot N I post

  60. PHYSICS ---HELP!

    A man doing push-ups pauses. His mass is 80-kg. Determine the normal force exerted by the floor on each hand and on each foot. a = 40 cm b = 95 cm c = 30 cm W = mg = 784 N

  61. physics

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  62. Physics

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  63. volume,mass,weight

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  64. physics

    suppose you exert 150N on your refrigerator and push it across the kitchen floor at constant velocity. a. is the friction force equal and opposite to your 200N push? explain b. does the friction force make up the reaction force to your push?

  65. physics

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  66. Science

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  67. Science

    You push a book on a table so that its velocity is constant. If the force that you apply is 15N. what is the force due to sliding friction? If you accelerate, so that the velocity is no longer constant is the force you are applying to the book greater or

  68. physics

    The drawing shows a person (weight W = 580 N, L1 = 0.849 m, L2 = 0.410 m) doing push-ups. Find the normal force exerted by the floor on each hand and each foot, assuming that the person holds this position.

  69. English

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  70. Physics

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  71. Physics

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  72. science

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  73. Physics

    A 400.0 KG mass experiences a horizontal push force of +720N And friction force of 320N A) assuming the mass is initially moving at 5.0 m/s far will it travel in 6.0 s? B) how much work does the 720.0 newton force do over the distance determine in part a?

  74. Physics. Appreciate the help I can get.

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  75. math

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  76. PHYSICS ---HELP!

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  77. Math

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  78. Math

    Drew does push-ups every three days starting on 3 January. He does sit-ups every four days starting on January 4, On which days in January will he do both push-ups and sit-ups? Use words, numbers, or models to justify your answer

  79. mathematics

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  80. Math

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  81. Enegry

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  82. physics

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  83. Math

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  85. physics

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  86. Math

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  87. physics

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  89. Physics

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  93. Pe

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  94. Thousandths

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  95. Gym (Physical Education)

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  96. Algebra

    While going for my daily run, I passed a squirrel carrying a nut in her mouth. When she saw me, she ran towards a safe place and, coming to a stone wall, easily jumped up on it and disappeared. I began to wonder how high I could jump if I were a squirrel.

  97. Algebra

    While going for my daily run, I passed a squirrel carrying a nut in her mouth. When she saw me, she ran towards a safe place and, coming to a stone wall, easily jumped up on it and disappeared. I began to wonder how high I could jump if I were a squirrel.

  98. Physics

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  99. math

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  100. Math

    She does sit-ups.The table shows how long it takes her to do different numbers of sit-ups. # of Sit-Ups | 10. | 30. |. 50. |. 200 | Minutes. |. 2. |. 6. |. 10. |. 40 | How long do you predict it will take her to do 120 sit-ups?

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