A volcano on a remote island erupts. Lava flows over the surface of the small island. The lava cools and forms igneous rock. Based on the diagram of the rock cycle above, what will most likely happen to the igneous rock next?
A.
The igneous rock will be weathered and form sedimentary rock.
B.
The igneous rock will be re-melted into magma.
C.
The igneous rock will chemically change into another type of igneous rock.
D.
The igneous rock will be buried underneath soil and turn into metamorphic rock.

since you're a real machine, your ama is always less than your ima, because you can never totally eliminate friction.

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force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.