Question #37f58

1 Answer
Jan 22, 2018

#17.5# meters

Explanation:

When using constant velocity, we can use the equation d = vt, or
distance = velocity * time

So, since we know the time and velocity, we can plug those in to our equation to find the distance.

our velocity is #2.5# m/s
our time is #7# seconds
our distance is unknown.

this gives us #d = (2.5 m/s) * (7 s)#

When we calculate #(2.5 * 7)# we get #19.84# as our distance.

To remember this with logic, instead of formula, you can think of it as:

If i am moving at a distance of #2.5# meters for every second I walk, and want to walk for #7# seconds, I will walk #2.5# meters seven times.

So, #2.5 + 2.5 + 2.5 + 2.5 + 2.5 + 2.5 + 2.5 = 2.5 * 7, or 17.5# meters.