Answer:
1585.67N
Explanation:
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Answer:
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Explanation:
Given initial velocity of ambulance
v0=18m/s , acceleration a=5m/s2
To find distance, x=?
First we need to calculate the time for which it acquires 30\,m/s. For that use equation
v=v0+at
30=18+5×t
⇒t=30−185=125seconds
Distance travelled by the ambulance
x=v0t+12at2
x=(18×125)+12×5×(125)2
x=43.2+2.5×5.76=43.2+14.4
x=57.6m
Therefore the ambulance has to travel 57.6 m to match the velocity of car.
Answer:
108.3 N
Explanation:
The maximum force of static friction acting on the box is given by:
where
is the coefficient of static friction
N is the normal reaction of the table on the box
Since the box is in equilibrium along the vertical direction, the normal reaction N is equal to the weight of the box, so:
And so, the maximum force of static friction is
Answer:
Look below
Explanation:
Units are very important. Let's say we were building an apartment. We used meters for every measurement except for 1 support where we used centimeters. This could lead to the collapse of the whole structure as the measurements were wrong. 100 meters and 100 centimeters are very different.
Mechanical Advantage is always (Output Force) / (Input Force) .
MA = (20 N) / (2 N)
<em>MA = 10</em>
