Chinese, asked by singhmanoj6907, 10 months ago

2. A toy car of mass 2 kg is moving with a velocity 4 m/s. Calculate the kinetic energy of
3. The Leaning Tower of Pisa is 45 m high. A mass of 4 kg is dropped from the top. Calculate its
potential energy at the top.​

Answers

Answered by husaina59
4

Answer:

2.Kinetic energy = 16 Joule

3.H=45m

m=4kg

potential energy (pE)=mgH

P.E=4×9.8×45=1764kgm³/sec²=1764Nm=1764J

Answered by Brainlyexpertz
3

Answer:2)=16000

3)=1800000

Explanation:

Question 2:

Mass m=2kg=2000g

Velocity v=4m/s

Kinetic energy=\frac{mv^{2} }{2}=(2000x4x4)/2=2000x4x2=16000

Question :

Mass m =4kg=4000g

Height h=45m

g=10(9.8)

Potential energy=mgh

                          =4000x10x45=180000

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