A 0. 14-kg baseball is dropped from rest from a height of 2. 0 m above the ground. What is the magnitude of its momentum just be
fore it hits the ground if we neglect air resistance?.
1 answer:
Answer:
0.8764kgm/s
Explanation:
Finding the velocity(v) before it hits the ground , where g is 9.8m/s²
v²= u² + 2gh
v² = 0 + 2× 9.8 × 2
v² = 40
v = √39.2
=6.26m/s
momentum= mass × velocity
= 0.14 × 6.26
= 0.8764kgm/s
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