In our new car we will be able to drive 30 miles in a half an hour from this information we can determine the cars acceleration
1 answer:
Answer:
By the information provided we can find the cars speed.
Explanation:
- Speed is the distance traveled by any object in certain time. As we have distance traveled by car as 30 miles.
- And time taken by car to travel 30 miles is half an hour. So speed is easily calculated as,
.
- Velocity is a vector quantity so we cannot determine velocity by knowing only distance and time, we need additional information of direction to know cars velocity.
- So the speed will be,
.
You might be interested in
Answer:
the velocity is 10 m/s
Explanation:
Using the expression for kinetic energy we have:
Answer:
False.
Explanation:
Yes the magnitude of a vector is always positive , but a vector consists of
- magnitude
- direction
when two vectors are added their direction may be opposite to each other For example-
,
then their resultant
This resultant vector's x and y component equal to y and x component of vector b so its magnitude will be equal to magnitude of vector b.
Therefore, the resultant magnitude not necessary equal to the magnitude of either vector.