Asked by Helga
A Dodge Stealth is driving at 70 mph on a highway. It passes a BMW going the same direction. The BMW is moving 7 mph backward relative the Dodge. What is the velocity of the BMW? Let the positive direction be forward.
-63 mph
-77 mph
77 mph
63 mph
A helicopter above the ground is descending at 3.1 m/s. It drops a package from rest(relative to the helicopter). Just before it hits the ground the package is falling at a rate of 9.5 m/s relative to the helicopter. Find the velocity of the package relative to the ground.
12.6 m/s, Up
6.4 m/s, Up
12.6 m/s, down
6.4 m/s, down
PLEASE EXPALIN HOW TO GET THE ANSWER AND THE CORRECT ANSWER. Thanks!
-63 mph
-77 mph
77 mph
63 mph
A helicopter above the ground is descending at 3.1 m/s. It drops a package from rest(relative to the helicopter). Just before it hits the ground the package is falling at a rate of 9.5 m/s relative to the helicopter. Find the velocity of the package relative to the ground.
12.6 m/s, Up
6.4 m/s, Up
12.6 m/s, down
6.4 m/s, down
PLEASE EXPALIN HOW TO GET THE ANSWER AND THE CORRECT ANSWER. Thanks!
Answers
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