Starting from rest, a person runs with a constant acceleration, traveling 40 meters in 10 seconds. what is their final velocity?

Final velocity v = 8.944 m/sec

Explanation:

We have given distance S = 40 meters

Time t = 10 sec

As it starts from rest so initial velocity u = 0

From second equation of motion

Now from first equation of motion , here v is final velocity, u is initial velocity, a is acceleration and t is time

So

c) up is the direction the magnetic force is acting on the charge.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.