ahies Class Test Fall 2017 (PHY 221) Time 1.30 Hrs Max Marks 50 1. What are St u

Question

ahies Class Test Fall 2017 (PHY 221) Time 1.30 Hrs Max Marks 50 1. What are St units of a) Angular acc, ( o Sytunear velocity 1) /s d Horizontal range () 2. For a projectile fired at an angle with hoqsontal,what wll be the verticlvelocity at the highest point? a 3. At what angle, horizontal range of a projectile fired at an angle is maximum?(3) 4. What is the difference between, a) Speed and Velocity (1,1) sce. (ar rah s b) Distance and displacement (1,1) c) Average and Instantaneous acc. (1,1) 5. Convert 72 km/hr in to m/s and 65 miles/hr in to km/hr? (1, 1)

Explanation / Answer

According to the chegg guidelines I am allowed to answer only 1 question at a time .

5) 72 km/hr to m/s

72 km/hr = 72 * ( 1000 m / 3600 s ) = 20 m/s ==============ANSWER)

65 miles/ hour = 65 * 1.60934 km/hr = 104.60 Km/hr =======ANSWER)

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