doesnt the answer is rotary??
Answer:
10 m/s
Explanation:
The potential energy of the roller coaster is converted to kinetic energy. According to law of transformation of energy, potential energy = kinetic energy.
mgh = ½mv².Take g as 10m/s².
150 * 10 * 50 = ½ * 150 * v².
7500 = 75v².
v² = 7500/75.
v = √100.
v= 10 m/s.
Answer:
Acceleration of the object will be 
Explanation:
We have given mass of the object m = 9 kg
spring constant k = 95 N/m
Spring is stretched by 10 cm
So x = 10 cm = 0.1 m
We know that force is given by 
From newton's law we also know that force is given by
F = ma , here m is mass and a is acceleration
So 
Answer: A and B
Explanation:
took the test:) hope this helps