The vehicle traveling 60 mph is going 4 times as fast. the brakes must do an amount of work that's equal to the original kinetic energy. the brakes exert the same amount of force no matter what the case is, so the stopping distance will be four times as long for the car going 60 mph compared to the car going 30 mph.
Answer:
20
Step-by-step explanation:
5 divided by 1/4
5 x 4
Answer:
1/4, 3/5, 8/10
Step-by-step explanation:
3/5 is greater than 1/4
(2/4 is equal to 2.5/5---that should give you a visual picture why)
8/10 is greater than 3/5
3/5 multipled by 2 is 6/10
so, 6/10<8/10
Answer:
Mean: 30 students
Standard deviation: 5.2 students
Step-by-step explanation:
Khan
Answer:
3/4 lb
Step-by-step explanation:
Lightest: 3 3/4
Heaviest: 4 1/2 = 4 2/4
4 2/4 - 3 3/4 = 18/4 - 15/4 = 3/4
