An object has a kinetic energy of 175 J and a momentum of magnitude 25.0 kg m/s. Find the

speed of the object.

Answer:14 m/s

Explanation:

Kinetic energy (ke) = 175J

Momentum (M) = 25kgm/s

Speed=v

Mass=m

Ke = (m x v x v) / 2

175 = (mv^2) / 2

Cross multiply

175 x 2=mv^2

350=mv^2

Momentum=mass x velocity

25=mv

m=25/v

Substitute m=25/v in 350=mv^2

350=25/v x v^2

350=25v^2/v

v^2/v=v

350=25v

v=350/25

v=14 m/s