In a rolling race, two objects are released from the top of two identical ramps. They then roll without slipping to the bottom o
2 answers:
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Answer:
2.8m
Explanation:
Convert to metric:
500g = 0.5 kg
15g = 0.015 kg
Assuming elastics collision, we could use the law of momentum conservation to calculate the speed of black and projectile post-collision V:
mv = (M + m)V
This would make the system moves up, which convert its kinetic energy to potential energy. By the law of energy conservation when the mass reaches its highest point (aka speed = 0)
Answer:
= 40 cm
Explanation:
given data
string length = 30 cm
solution
we take here equation of length that is
L = ...............1
so
total length will be here
so will be
= 40 cm