A Particle Accelerates Uniformly from a Speed of 30 Cm/s

question 77

Multiple Choice

A particle accelerates uniformly from a speed of 30 cm/s to 40 cm/s in 5 s and thereafter moves at a constant speed of 40 cm/s for an additional 3 s.The average speed over this total time interval is

• A)35 cm/s
• B)27 cm/s
• C)0.45 cm/s
• D)37 cm/s
• E)73 cm/s

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