Question

If Potential energy is 200 and mass is 10 what is the height ?

Answer 1

Explanation:

PE =200 J

m = 10

h=?

we know that ,

pE = mgh where g is acceleration due to gravity of earth = 10 m/s ^2

200= 10 ×10 × h

h = 2 m

and

KE = 1/2 mv^2

250 = 1/2 ×5 ×v^ 2

100 = V ^ 2

v= 10 m/s

Answer 2

If Potential energy is 200 and mass is 10 what is the height ?

Using the formula of potential energy,

U = mgh

Given, Mass of object, m = 10 kg.

Potential energy, U = 200 j

U = mgh

200 = 10 * 9.8 * h

h = 200 / 10 * 9.8

h = 2.04 m.

h= 2m.

If Kinetic energy is 250 and mass is 5 what is velocity ?

50kg m/s

Explanation: KE=12mv2

250 J=12(5 kg)v2

v2=250×25=100

v=100−−−√

Velocity v=10 m/s

Momentum p=mv

=5 kg×10 m/s

p=50 kg m/s