U
A ball is thrown vertically upwards with a velocity
v and an initial kinetic energy E. When half way
to the top of its flight, it can have velocity and
kinetic energy respectively of:
(1)v/2,E/2
(2)v/√2,E/2
(3)v/4,E/2
(4)v/4,E/√2
Answers
Answered by
1
Answer:
option b)
.
please mark me as brain least
Explanation:
half way up you have gained half of the height so you have gained half potential energy
so E= E/2
subbing into this relationship E2=E/2
1/2 mv2=1/2mv2/2
v2=v2/2
square both side give answer
Similar questions