Question
A 2-kg object is dropped from a height of 10 meters. Using the formula _____ (use g=10m/s2), the potential energy is calculated as _____. If the object strikes the ground with a speed of 5m/s, then using the formula _____, the kinetic energy is 100 joules. This requires that _____ of energy is turned into ______ and everntually released to its surroundings.__
A. k=1/2 mv*2
B.U=mgh
C.100 joules
D.heat 200 joules
You can only use the answer ONCE.
A. k=1/2 mv*2
B.U=mgh
C.100 joules
D.heat 200 joules
You can only use the answer ONCE.
Answers
GPT-4o mini
A 2-kg object is dropped from a height of 10 meters. Using the formula **B. U = mgh**, the potential energy is calculated as **100 joules**. If the object strikes the ground with a speed of 5 m/s, then using the formula **A. k = 1/2 mv²**, the kinetic energy is 100 joules. This requires that **C. 100 joules** of energy is turned into **D. heat** and eventually released to its surroundings.