Answer:
<h3>The answer is 3.0 m/s²</h3>Explanation:
The acceleration of an object given it's velocity and time taken can be found by using the formula
where
a is the acceleration
v is the velocity
t is the time
From the question
v = 12 m/s
t = 4 s
We have
We have the final answer as
<h3>3.0 m/s²</h3>Hope this helps you
Given,
Effort force = 120 N
Load force= 1050 N
Mechanical advantage of a pulley is given by the ratio of load force to the effort force.
Therefore, the mechanical advantage of the given pulley is 8.75.
Answer:
Yes, the car driver is exceeding the given limit.
Explanation:
<u>Given:</u>
We know,
1 mi = 1.60934 km.
1 km = 1000 m.
Therefore, 1 mi = 1.60934 × 1000 m = 1609.34 m.
1 hour = 60 minutes.
1 minute = 60 seconds.
Therefore, 1 hour = 60 × 60 seconds = 3600 seconds.
Using these values,
Therefore,
Clearly,
which means, the car driver is exceeding the given speed limit.