I. Solve the following problems and answer the following questions. Show all your work and provide answers rounded off to the appropriate number of significant digits. Explain your reasoning when required in a maximum of a 5 lines paragraph. 1.During a race, a sprinter increases from 18 km/h to 27 km/h over a period of 3.5 X 10-4 h. What is the sprinter’s average acceleration in m/s2 during this period?

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

don't remove my answer im trying my best to answer them

explanation:

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.

answergravity;