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A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car.

A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car.

Grade:6

2 Answers

Leena
10 Points
3 years ago
d = 110 m
 
t = 5.21 s
 
vi = 0 m/s
 
Find:
 
a = ??
d = vi*t + 0.5*a*t2
110 m = (0 m/s)*(5.21 s)+ 0.5*(a)*(5.21 s)2
 
110 m = (13.57 s2)*a
 
a = (110 m)/(13.57 s2)
 
a = 8.10 m/ s2
Kushal Chaudhari
102 Points
3 years ago
1d = 110 m
 
t = 5.21 s
 
vi = 0 m/s
 
Find:
 
a = ??
d = vi*t + 0.5*a*t2
110 m = (0 m/s)*(5.21 s)+ 0.5*(a)*(5.21 s)2
 
110 m = (13.57 s2)*a
 
a = (110 m)/(13.57 s2)
 
a = 8.10 m/ s2

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