Question

kinetic energy of a body of mass 6g and momentum 9Ns will be __ J​

Answer 1

Answer:

momentum = p

p = mv = 9kg.m/s

given , m = 6g = 0.006kg

so velocity = 9/0.006

= 1500m/s

now kinetic energy = ½mv²

= ½ × 0.006 × 2250000

= 6750J

hope it helped :)

Answer 2

Answer:

6750J

Step-by-step explanation:

given: mass=0.006kg

momentum=9N

P=MV

(Momentum=mass*velocity)

9=0.006*9

v=1500

Now, K.E= 1/2mv^2

= 1/2*6*(1500)^2

= 1/2*6*2250000

= 6750J