Astronaut Buzz Lightyear normally weighs 215 pounds on Earth. He then travels the a new planet that is twice the size of Earth in diameter, but have the same mass. How much would he weigh on this new planet? Answer should be in pounds.

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

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.