Popular student's questions

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  A small helicopter travels 225 m across a city in a direction 53.1° south of east. What are the components of the helicopter's trip?
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  At point A, a hiker is 10m east from the origin. After 35s, the hiker arrives at point B 40m at 60° north of east from the origin. Calculate the magnitude and direction of the hiker's displacement.
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  A 500 kg car is parked on a hill with a 5° slope. What is the magnitude of the friction force acting on the car?
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  Convert 2.5m3 to cm3
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  A rifle with a barrel length of 60 cm fires a 10 g bullet with a horizontal speed of 400 m/s. The bullet strikes a block of wood and penetrates to a depth of 12 cm. b. How long does it take the bullet to come to rest?