Respuesta :
240,000 miles / hour²
Average acceleration can be calculated by dividing the change in speed by the elapsed time. Since the dragster's speed was 0 when the light turned green, the change in speed is simply 300 mph. Now, divide that by the time:
300 mph / 0.00125 hours = 240,000 miles / hour²
By the way, 0.00125 hours is just 4.5 seconds!
Answer:
The acceleration of the dragster is 29.80m/s²
Explanation:
Acceleration is defined as the change in velocity of a body with respect to time.
Acceleration = Change in velocity/Time
Given the velocity = 300miles/hour
Time = 0.00125hours
Converting the time to seconds and velocity to meter/seconds
Since 1hour = 3600seconds
Time = 0.00125×3600
Time = 4.5seconds.
For velocity:
1hour = 3600seconds
1mile = 1609.343m
300miles/hour = (300×1609.343m)/1×3600sec
= 482,803.2m/3600secs
= 134.112m/s
Acceleration in m/s² = 134.112/4.5
Acceleration = 29.80m/s²