A car traveling at 26 m/s starts to decelerate steadily. It comes to a complete stop in 5 seconds. What is its acceleration?
1 answer:
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PART A)
Here by force balance along Y direction
Force balance along X direction
now by torque balance
PART B)
now from above equations
now net reaction force of wall is given as
Answer:
The options are not provided, so i will answer in a general way.
We know that:
The movement is along a straight horizontal surface, then we have one-dimensional motion.
The speed is 2m/s
We want a graph of position vs time.
Now, remember the relation:
Distance = Speed*Time
Then we can write the position as a function of time as:
P(t) = 2m/s*t + P0
Where t is our variable, that represents time in seconds, and P0 is the position at time t = 0seconds, we can assume that this is zero.
Then the equation is:
P(t) = 2m/s*t
And the graph is something like:
