Answer:
(b) 2√10 N
Step-by-step explanation:
Impulse = change in momentum
FΔt = mΔv
F (3 s) = (2 kg) √((1 − -2)² + (3 − 3)² + (4 − -5)²) m/s
F (3 s) = (2 kg) √(3² + 0² + 9²) m/s
F (3 s) = (2 kg) (3√10 m/s)
F = 2√10 N
9.4m questions
12.2m answers