A car advertisement states that a certain car can accelerate from rest (0 m/s) to 19.5 m/s in 7 seconds. Find the car’s average acceleration
Answers
Answered by
0
Answer:
Explanation:
The acceleration of an object can be calculated based on the formula
a
=
v
−
u
t
where
a
=
acceleration
v
=
final velocity
u
=
initial velocity
t
=
time taken
Here
70 km/h
=
70 km
1 h
⋅
1 h
3600 s
⋅
1000 m
1 km
=
19
4
9
m/s
From the question
u
=
0 m/s
v
=
19
4
9
m/s
t
=
7 s
So
a
=
19
4
9
m/s
−
0 m/s
7 s
a
=
2
7
9
m/s
2
Answered by
0
Answer:
V =70 km/ h
V =70 km/ hu = 0 km /h
V =70 km/ hu = 0 km /ht =, 7 sec
V =70 km/ hu = 0 km /ht =, 7 secAcceleration = V - u/t
V =70 km/ hu = 0 km /ht =, 7 secAcceleration = V - u/t= 70-0/7
V =70 km/ hu = 0 km /ht =, 7 secAcceleration = V - u/t= 70-0/7= 70/ 7
V =70 km/ hu = 0 km /ht =, 7 secAcceleration = V - u/t= 70-0/7= 70/ 7= 10km/h^2 ans.
Explanation:
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