Jack, a student, travels to school 10 miles every morning. The speed limit is 25 miles/hour. How long it takes Jack to get to his school?

0.4 hour or 24 minutes

Explanation:

Speed =displacement /time

25miles/hour=10/time

10/25=time

0.4hour=time

24 minutes

Explanation:

• If the speed limit is 25miles/hour, it takes 2.4 minutes to travel 1 mile.

60mins/25miles

= 2.4 minutes

• Therefore to travel 10 miles;

2.4 minutes × 10

= 24 minutes

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2