That depends on the driver's reaction time, the weight of the car, the condition of the brakes,
and the composition and condition of the pavement.
I work that out as 4.87 seconds.
Data is insufficient. initial velocity is 0. final velocity is 30 mph. Need acceleration to use the formula v = u + at.
If a runner runs a mile in 4 minutes 30 seconds he is averaging 13.33 MPH over the total distance.
They are traveling at 4.9 mph
0.41 seconds.
28
24.8 mph at that rate.
I work that out as 4.87 seconds.
About 20 mph.
At 30 mph, an object travels about 102.66 feet in two seconds.
Data is insufficient. initial velocity is 0. final velocity is 30 mph. Need acceleration to use the formula v = u + at.
About 7 minutes and 30 seconds.
It would take approximately 8 seconds to travel 492.8 feet at a speed of 30 mph.
35 feet at 30 mph requires about 0.8 seconds.
It is approx 6.102 mph.
4
-4 mph/sec (Study Island Answer)