Which statement defines an ore? Rock broken down to become part of the topsoil. Rock dug out from the earth to use in constructi
2 answers:
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Answer:
Force applied to stop the car = 1,250 N
Explanation:
Given:
Mass of car (M) = 1,000 kg
Initial velocity (U) = 20 m/s
Final velocity (V) = 0 m/s
Distance (S) = 160 m
Find:
Force applied to stop the car.
Computation:
Force applied to stop the car = 1,250 N
Answer:
k = 5178.8 N/m
Explanation:
As we know that spring mass system will oscillate at angular frequency given as
now we have
now the maximum acceleration of the spring block system is at its maximum compression state which is given as
here A= maximum compression of the spring
so here in order to find maximum compression of the spring we will use energy conservation as we know that initial total kinetic energy of the car will convert into spring potential energy
here we know that
v = 85 km/h
now we have
now from above equation of acceleration we have