Recent content by carrollk9

Homework Statement The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest and runs 50 m in a straight line, reaching a final speed of 85 km/h. (a) Determine the cheetah's average acceleration during the short sprint. (b)...

Homework Statement Two boats start together and race across a 70-km-wide lake and back. Boat A goes across at 70 km/h and returns at 70 km/h. Boat B goes across at 35 km/h, and its crew, realizing how far behind it is getting, returns at 105 km/h. Turnaround times are negligible, and the boat...

but my answer is correct right?

because they traveled for 80 minutes I don/t know the proper equation to punch these numbers into.

1/6th

I appreciate the answer the question but I would enjoy more on understanding how to do them myself Other questions on my online homework I don't get Two boats start together and race across a 70-km-wide lake and back. Boat A goes across at 70 km/h and returns at 70 km/h. Boat B goes across at...

Homework Statement She drives for 40.0 min at 80.0 km/h, 10.0 min at 75.0 km/h, and 30.0 min at 45.0 km/h Determine the average speed for the trip The attempt at a solution I got 66.25khm by ((4*80)+(75)+(3*45))/8 which looks like its in the ballpark range but when I enter the answer for my...