1)How is displacement different from distance? Under what conditions can an object travel a certain distance and yet its resultant displacement be zero?
Displacement is a vector quantity while distance is a scalar quantity. If an object goes round-trip its displacement will be zero.
2)What is the distance traveled by a vehicle in 12 minutes, if its speed is 35 km/h?
(35km/1h)(1000m/1km)(1h/60min)(1min/60sec)=9.72 m/s
720 sec/9.72
= 74 km
Jon, think. If he was taveling at 35km/hr for an hour, he would have went 35km. He traveled for 1/5 of an hour.
The answer is obviously wrong. It has to be about 7km (1/5 of 35)
Then, to top it off, you divided time by speed. Hmmmm. distance=velocity*time
/stay in school!
To calculate the distance traveled by the vehicle in 12 minutes, we need to convert the speed from kilometers per hour to meters per second.
Given that its speed is 35 km/h, we can convert it using the following conversion factors:
- 1 km = 1000 m
- 1 h = 60 min
- 1 min = 60 sec
So, multiplying the given speed of 35 km/h by the conversion factors mentioned above, we get:
(35 km/h) x (1000 m/1 km) x (1 h/60 min) x (1 min/60 sec) = 9.72 m/s
Now we can calculate the distance traveled:
Distance = Speed x Time
= 9.72 m/s x 720 sec
= 7,022.4 meters
Therefore, the distance traveled by the vehicle in 12 minutes is 7,022.4 meters or 7.02 kilometers.