All categories

3 years ago

At what time would the velocity reach 60.00 km/hr?

Mathematics

2 answers:

storchak [24]3 years ago

8 0

Answer:

<u>10 seconds</u>

Step-by-step explanation:

The question is missing the figure.

See the attached figure.

The graph shows the velocity (y-axis) versus the time (x-axis).

In order to find when the magnitude of the velocity reaches 60 km/hr, we should find the time t (x-coordinate) at which the velocity (y-coordinate) is 60 km/hr

By looking at the graph, we see that this occurs when t = 10 seconds

==============================================================

Another solution:

The relation between the velocity(y) and time(x) has the following equation as the line pass through (0,0):

y = mx

where m is the slope of the line

Using the figure pick a point to find the slope for example (2,12)

∴ m = 12/2 = 6

When the velocity reach 60 km/hr

∴ x = y/m = 60/6 = 10

∴ Time = 10 seconds

Alex777 [14]3 years ago

8 0

Answer:

10.00 seconds

Step-by-step explanation:

You might be interested in

Assume that 20 percent of students have taken calculus in high school. Of those who have taken calculus in high school, 80 perce

Alex73 [517]

Answer:

The probability that a randomly selected student plans to major in science is 40%

Step-by-step explanation:

Students who take calculus in high school = 20% or 0.2

Of these students, 80% or 0.8 plan to major in science.

That means of these students,

(100 -80) = 20% or 0.2 do not plan to major in science

Students who do not take calculus in high school = (100 -20)= 80% or 0.8

Of these students, 30% or 0.3 plan to major in science.

That means of these students,

(100 -30) = 70% or 0.7 do not plan to major in science.

The probability of students who take calculus in high school and plan to major in science = 0.2 * 0.8

= 0.16

= 16%

The probability of students who take calculus in high school and do not plan to major in science = 0.2 * 0.2

= 0.04

= 4%

The probability of students who do not take calculus in high school and plan to major in science = 0.8 * 0.3

= 0.24

= 24%

The probability of students who do not take calculus in high school and do not plan to major in science

= 0.8 * 0.7

= 0.56

= 56%

All of these probabilities will give 100% of the population.

(16+4+24+56)% = 100%

Therefore, the probability that a randomly selected student plans to major in science = 16% + 24%

= 40%

8 0

3 years ago

885 students voted for school president. kennedy received 20% of the votes, keybra received 33%, jordan received 26%, and Chris

saul85 [17]

To find the answer, you must multiply 885 by .2, which is 20% in a decimal form. 885 times .2 is 177. So, 177 students voted for Kennedy

3 0

3 years ago

Please help sadmasdasfasfsag

Vesnalui [34]

Answer: 1- subtract 25 from 62, that’s your x

2- add 19 to 46, that’s your y

3- subtract 56 from 74, that’s your b

Step-by-step explanation:

7 0

3 years ago

a town predicts that its population will double ein10/2lne years simplify the expression, in how many years will the population

Naya [18.7K]

The town's population will double in 5 years. Simplifying 10 over 2 means dividing the numbers by 2, 10 divided by 2 is 5, and 2 divided by 2 is 1.

So the simplified answer is 5/1.

5 0

3 years ago

Read 2 more answers

Coordinates point a

Genrish500 [490]

I'm sorry cordinate what

6 0

3 years ago