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  • 16-01-2017
  • Physics
Answered

(20 POINTS)


A truck starts from rest and accelerates at 4 m/s2 for 9 seconds. How fast will the truck now be going?

Why could you accelerate while traveling at a constant speed?

Verified Answer :

Anonymous Anonymous
  • 28-01-2017
AWe know, a = v / t
Here, a = 4 m/s²
t = 9 s

Substitute their values, 
4 = v / 9
v = 4 × 9 
v = 36 m/s

B) We can accelerate at constant speed by changing our direction

Hope this helps!
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