A carpenter on top of a roof of 20.0m high dropped a hammer of mass 1.5 kg and it fell directly to the ground. the kinetic energy of the hammer just before hitting the ground is?

[g = 10 ms^-2]

600 J

150J

300 J

450 J

Correct Option

1 year ago

m=1.5
h=20
K.E=?😭😓

V²=U²+2gh
V²=0²+2×10×20
V²=400
Square root both side
V=20

Back to K.E formular
K.E=1/2MV²
K.E=(1/2)×(1.5×20²)
K.E=300J 😂🤣

✌️

2 months ago

so using both formulas would work

ceoofwahala

20th June, 2026

Chemistry

2 comments

ASSAAS

20th June, 2026

English Language

5 comments

infinitehoaxx

21st May, 2026

Computer

4 comments

A carpenter on top of a roof of 20.0m high dropped a hammer of mass 1.5 kg and it fell directly to the ground. the kinetic energy of the hammer just before hitting the ground is?[g = 10 ms-2]