Suppose I drop a 44-kg anvil from rest and from such a height that the anvil reaches a speed of 10 m/s just before hitting the ground. Assume the earth was at rest before I dropped the anvil.  (a) What is the earth’s speed just before the anvil hits? The earth’s speed is ____x10^-22 m/s   (b) How long would it take the earth to travel 1.0 μm (about a bacterium’s width) at this speed? It would take ___million years

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Q: 33. A skier is sliding downhill at 8 m/s when she reaches an the icy patch on which her skis move…

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Q: A projectile is launched directly upward from the surface of the Earth with an initial speed of 5.9…

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Q: The only force acting on an object of mass 2.00 kg moving along the x-axis is shown in the figure.…

A: The force at t=4 s is 16 N.  Force is given by,  F=ma Calculate the acceleration as,  16=2×a  a=8…

Q: Which of the following bodies has THE LARGEST kinetic energy? O An object with mass M and speed 4V O…

A: Kinetic energy of an object is given by- KE=12×mass×speed2

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Q: e by side, two round objects are released from the top building, object 1 is released from rest,…

A: Given:-  Let the two objects 1 is  A and objects 2 is B then given  uA=0 , vA=4 m/s vB=3 m/s  Find:-…

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Q: In the potential energy experiment. If the kinetic energy of the system composed of masses mj and m2…

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A: K=Kinetic energy of system=0.818 Jm1=Mass of cartm2=Mass of block=110 gv=Velocity of system=1.56 m/s

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Q: 10. If a boy throws a 2.0 kg stone straight up into the air with a speed of 12 m/s just over the…

A: mass of stone = 2 kg initial upwards velocity (u) = 12 msheight of cliff (h) = 55 m

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Q: An electron (mass = 9.11 × 10−31 kg) is accelerated along a straight line at 3.9 × 1014 ms−2 . The…

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Q: Suppose I need to  toss an object of mass 5.2 up onto a shelf 5.94 meters above where my hands can…

A: The third equation of motion is  v2 = u2 + 2 a s  where, u is the initial speed, v is the final…

Q: Write the equations for the x- and y-components of the velocity of the stone with time. (Use the…

A: Initial position , x0 = 0 m , y0=56.0  m Initial velocity components , v0x = 19.5 m/s , v0y = 0 m/s…

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Q: In a certain system of absolute units the acceleration produced by gravity in a body falling freely…

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Central Force

Central force is the force that acts along the center of mass of one body to the center of mass of another body. Its direction from or away from a point on a body to another is called the center of the force. Such forces include gravitational force between two massive objects or electrostatic forces between two charged particles. So from atoms to planets, the central forces play an important role in shaping our daily lives. One of the remarkable features of central forces is that they are conservative, i.e. the total energy of a central force system can always be expressed as a gradient of a potential energy function.