# Answer on Mechanics | Relativity Question for r gagat

Question #6547

An 879-kg (1943 lb) dragster, starting from rest, attains a speed of 25.4 m/s (56.9 mph) in 0.59 s. What is the average acceleration of the dragster during this time interval?

Expert's answer

Let'suse the following formulafor velocity of accelerated motion(taking into account that it started from rest V

V=atwhere a - acceleration, t-time

whence a=V/t

a=25.4/0.59=43

_{0}=0):V=atwhere a - acceleration, t-time

whence a=V/t

a=25.4/0.59=43

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