Question

Answer the refered



answer the both​

Answer 1

Answer:

initial velocity=b

initial acceleration= 2c

KE=100J

Explanation:

see answer in picture

hope this helps you

Answer 2

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kinetic energy is 100J when it is doubled

Kinetic energy is 225J when it is increased three times

Explanation:

v=5m/s

KE=25J

KE=1/2mv^2

25 =1/2×m×5×5

2=m

When velocity is doubled,

v=5x2=10m/s

KE= 1/2x2x10x10

KE=100J