(a) Calculate the gravitational force exerted on a 3.00 kg baby by a 90 kg father 0.150 m away at birth (assisting so he is close).(b) Calculate the force on the baby due to Jupiter if it is at its closest to the earth, some 6.29 × 10 11 m away, showing it to be comparable to that of the father. The mass of Jupiter is about 1.90 × 10 27 k g. Other objects in the room and the hospital building also exert similar gravitational forces. (Of course, there could be an unknown force acting, but scientists first need to be convinced that there is even an effect, much less that an unknown force causes it.)

Question

(a) Calculate the gravitational force exerted on a 3.00 kg baby by a 90 kg father 0.150 m away at birth (assisting so he is close).(b) Calculate the force on the baby due to Jupiter if it is at its closest to the earth, some   6.29  ×      10          11        m away, showing it to be comparable to that of the father. The mass of Jupiter is about   1.90  ×      10          27           k  g. Other objects in the room and the hospital building also exert similar gravitational forces. (Of course, there could be an unknown force acting, but scientists first need to be convinced that there is even an effect, much less that an unknown force causes it.)

exorteygrdh · Accepted Answer

Step 1a)the gravitational force is,  F  =            G      M      m              r      2      Step 2  F  =            (      6.673      ×              10                  −          11                    N              m        2                    /            k              g        2            )      (      90             k      g      )      (      3.00             k      g      )              (      0.150      m              )        2                =  8.01  ×      10          −      7        NStep 3b)recall the gravitational force equation and substitute the given values,   F  =            (      6.673      ×              10                  −          11                    N              m        2                    /            k              g        2            )      (      1.90      ×              10                  27                           k      g      )      (      3.00             k      g      )              (      6.29      ×              10                  11                    m              )        2                =  9.61  ×      10          −      7        N

(a) Calculate the gravitational force exerted on a 3.00 kg baby by a 90 kg father 0.150 m away at bi

Answered question

Answer & Explanation

New Questions in Force, Motion and Energy