How would you solve these problems?

Question

If a car moves at a constant rate of 5 meters per second, what distance does it reach in 45 seconds?

If a man walks a distance of 1 kilometer in 10 minutes at constant velocity, what is his velocity?

A truck is moving at a constant velocity of 80 meters per second. It needs to rush to a town that is 25 kilometers away in 5 minutes to ensure that their delivery is on time. Will they make it?

Answer 1

YOUR QUESTION IS LIKE 3 QUESTIONS IN 1. Also, each individual problem has several components to it. I think this would make a good series of video's split up into at minimum 3-5 segments.

A few hints to get you started:

#1) what is each question asking you to do? What do you need to find? Can you identify any "key terms" which you need to translate into words that have meaning to you?

#3) What am I given? what do I already know?

#4) Are there any specific equations I know that I can apply to solve these problems?

Problem 1: If a car moves at a constant rate of 5 meters per second, what distance does it reach in 45 seconds?

Problem 1: If a car moves at a constant rate of 5 meters per second, what distance does it reach in 45 seconds?

 

What is given/key words:

°Constant rate  -  translation -à the rate does not change at any point in time. 

°5 m/second    =   the specified constant rate used in the problem

°distance          =  how far we traveled = our known variable (?)

Hmm looks like I am dealing with the following variables: a rate, a time, and a distance.

What formula uses these 3 variables?? Perhaps d = r x t ? rings a bell?

D = distance

R = rate

T = time

Now all we need to do is plug in the variables to solve:

D = ? (going to be in m right/)

Rate 5 m/s

T = 45 seconds

D = 5 m/s x 45 seconds

Solve for d                                                        

                                                                                   

                                                                            D = 5 m x 45 = 225 m 😊

LET ME KNOW IF YOU WOULD LIKE TO SIGN UP FOR a session, I am always glad to help you out!!