The acceleration is 4 m/s² in the direction of motion
Explanation:
A car speeds up from rest to +16 m/s in 4 s
To find the acceleration:
1. Find the best rule contains initial velocity "u", final velocity "v", time "t"
and acceleration "a"
2. Substitute the values of u , v and t in the rule
3. Find the acceleration a
→ v = u + a t
→ u = 0 m/s , v = + 16 m/s , t = 4 seconds
→ 16 = 0 + a(40
→ 16 = 4 a
Divide both sides by 4
→ a = 4 m/s² in the direction of motion
The acceleration is 4 m/s² in the direction of motion
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Answer:
Net Force = 0
Explanation:
Causes objects to accelerate. Balanced Forces. Two equal forces push in opposite direction causing no change in motion causing net force = 0.
Answer with Explanation:
We are given that
We have to find the acceleration of the system and the tension in the string.
...(1)
...(2)
Using equation (2) in equation (1)
Where 
Using the value of a in equation (2)
EVEN IF they can build such a machine, it's not too useful.
-- If the wind starts and stops, your car would do the same thing.
-- If the wind isn't blowing at all, your car is going nowhere. (and fast)
-- You could never move along the road faster than the wind is moving along the road.
-- You could never move in the direction towards where the wind is coming from. This has been proven before, with the technological marvel known as the "sailboat".
Call your broker immediately. Tell him you do NOT want to buy any stock in CarCompany.
