A bullet fired from a rifle travels at an average speed of 2520 km/hr. It hits the target after 0.2 seconds. How far (in m) is the target from the rifle?Options70100200140
Question
A bullet fired from a rifle travels at an average speed of 2520 km/hr. It hits the target after 0.2 seconds. How far (in m) is the target from the rifle?Options70100200140
Solution
To solve this problem, we need to convert the speed of the bullet from km/hr to m/s because the time is given in seconds and we need to find the distance in meters.
1 km = 1000 m 1 hr = 3600 s
So, 2520 km/hr = 2520 * 1000 m / 3600 s = 700 m/s
The formula to calculate distance is speed * time.
So, the distance = speed * time = 700 m/s * 0.2 s = 140 m
Therefore, the target is 140 meters away from the rifle.
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