Answer:
the attraction between N and S poles
Answer:
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Explanation:
The Average acceleration is 3.25m/s².
Acceleration is the change in velocity of the body with respect to time.
Where,
a= acceleration
u= initial speed
v= final speed
t= time
Initially, u = 2m/s
v = 16m/s
t = 3.5s
a = v-u/t
a = 16-2/3.5
a = 4m/s²
Then, u = 26m/s
v = 18m/s
t = 4s
a = v-u/t
a = 26-18/4
a =2 m/s²
Now, u = 0m/s
v = 20m/s
t = 2s
a = v-u/t
a = 20/2
a = 10m/s²
Finally, u = 20m/s
v = 10m/s
t = 2s
a = v-u/t
a = 10-20/2
a = -5m/s²
The average acceleration is the acceleration during the entire journey = 4+2+10-5/4
Average acceleration = 13/4m/s²
Average acceleration = 3.25m/s²
The Average acceleration is 3.25m/s²
Learn more about Acceleration here, brainly.com/question/2303856
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conservation of momentum ... that before = that after ... change zero
