Question

The object which has greater kinetic energy is
a) mass = 3 kg, velocity = 4 ms⁻¹.b) mass = 5 kg, velocity = 6 ms⁻¹.c) mass = 8 kg, velocity = 2 ms⁻¹d) mass = 10 kg, velocity = 3 ms⁻¹

Answer 1

a)m=3kg
v=4m/s
KE=1/2×3×4×4. {KE=1/2×m×v×v}
=24J
b)m=5kg
v=6m/s
KE=1/2×5×6×6=90J
c)m=8kg
v=2m/s
KE=1/2×8×2×2=16J
d)m=10kg
v=3m/s
KE=1/2×10×3×3=45J
b)has greater kinetic energy.
I hope this help you