BRIGHT HEADLIGHTS
AND SEVERE WEATHER CONDITIONS
Answer:
Speed=1.633 m/s
Force= 20 N
Explanation:
Ideally,
hence
where v is the speed of collar, m is the mass of collar, k is spring constant and s is the displacement.
In this case, s=100-0=100mm=0.1m since 1 m is equivalent to 1000mm
k is given as 200 N/m and mass is 0.75 Kg
Substituting the given values

Therefore, <u>the speed is 1.633 m/s</u>
The sum of vertical forces is given by mg where g is acceleration due to gravity and it's value taken as 
Therefore, 
The sum of forces in normal direction is given by
therefore

Therefore, <u>normal force on the rod is 20 N</u>
Answer:
It studies the process of technological change. Under the field of Technology Dynamics the process of technological change is explained by taking into account influences from "internal factors" as well as from "external factors
Explanation:
Explanation:
Joey has a car that uses the hand crank to open the windows. Joey is wondering where the energy comes from to open the windows.The sunHuman-powered energy from JoeyThe hand crankThe moving car