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VikaD [51]
3 years ago
6

What is the acceleration of a vehicle that goes from 70 m/s to a stop in 35 s?

Physics
1 answer:
belka [17]3 years ago
7 0
U=70 , v= 0, t=35, a=?
v=u+at
0=70+a(35)
-70=35a
a=-2m/s^2
Decelerate 2ms^-2 or acceleration is -2ms^-2
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shusha [124]

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3 years ago
Jaclyn plays singles for South's varsity tennis team. During the match against North, Jaclyn won the sudden death tiebreaker poi
Nataly [62]

Answer

given,

mass of ball, m = 57.5 g = 0.0575 kg

velocity of ball northward,v = 26.7 m/s

mass of racket, M = 331 g = 0.331 Kg

velocity of the ball after collision,v' = 29.5 m/s

a) momentum of ball before collision

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   P₁ = 1.535 kg.m/s

b) momentum of ball after collision

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d) using conservation of momentum

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change in velocity of the racket is equal to 9.76 m/s

5 0
4 years ago
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