Question

A car moves at a constant speed of 50 miles per hour. How many hours does it take the car to go 200 miles?

Answer 1

Answer:

4 hours

Step-by-step explanation:

if it goes 50 a hour and you need to go 200 then take 200 and divide by 50 and you get 4

Answer 2

Given : The distance covered by the car at a constant speed of 50 miles per hour

To find : Time taken by the car to cover 200 miles

Distance covered by car in 1 hour = 50 miles per hour

Time taken to cover 200 miles

$\text{new time taken} = \frac{new \:distance}{old\:distance}}\times \textsf{time taken to complete old distance}$

$=\frac{200}{50} \times 1$

$= 4 \times 1$

$=\boxed{\textsf{4}}}$

Time taken to cover 200 miles = 4 hours

EXTRA INFORMATION

$\boxed{\boxed{\textbf{DISTANCE :-}}}}$

⇾Distance is the total path covered by a body in a unit time.

⇨Let's learn a few points about Distance-

•Distance is a scalar quantity.It only has magnitude, no direction , thats why it's a scalar quantity.

•Distance is always taken positive.

•Distance can never have a magnitude which is less than displacement.

$\boxed{\boxed{\textbf{DISPLACEMENT :-}}}}$

⇒While an object is in motion, to covers some distance.

⇒ Distance is the length of actual path covered by an object in motion.

⇒ The point from where it starts is the starting point of the body.

⇒ The place where it comes to rest is the end point.

⇒ Thus, Displacement is defined as follows:

⇴The shortest distance between the start and end points of an object in motion is defined as displacement.

⇴Displacement is always in a straight line; hence, it requires some direction to define itself.

⇴It also requires some magnitude (eg. 2km, 3km, 4km etc.) to define how much displacement occurred in which direction.

⇴ Thus, Displacement is a vector quantity as it requires both magnitude and direction to define itself.

⇻Since it is a vector quantity, it may be positive, negative or zero (if there is no motion of the body or the starting and ending points are the same).