Answer:
B
Explanation:
Because blocks 2 and 3 have sides with unequal forces while block 1 doesnt. Plz drop a follow if this helps! ❤
<span>We know that an object in moving with acceleration follow the rule according that
the distance covered will be : d = Vi*t + 1/2*a*t^2
where d is distance, Vi is initial speed, and a is acceleration
Then after 1 km which is 1000 metres we have:
1000 = Vi *71.2 + 1/2*0.0499*(71.2)^2
Vi = (1000-1/2*0.0499*(71.2)^2)/71.2 = 1000/71.2 - 1/2*0.0499*71.2 = 12.27 m/s
Then the car was going at 12.27 m/s when started to accelerate.</span>
Answer:
An object with negative acceleration could be speeding up, and an object with positive acceleration could be slowing down. ... Consider the fact that acceleration is a vector that points in the same direction as the change in velocity.
Explanation:
Ultraviolet rays is the answer
The kinematic formula I would use is v(f)=v(i)+at so plugging in the values you'd get 5.5=14+a*6
So a= -1.42, the answer is negative because the car is slowing down.