Question
Question: A 20-kg crate is lifted by an upward force of 200 N. The crate's upward acceleration is –...
A 20-kg crate is lifted by an upward force of 200 N. The crate's upward acceleration is –
A
0.20 m/s2
B
10 m/s2
C
9 m/s2
D
98 m/s2
Answer
0.20 m/s2
Explanation
Solution
200 N – 20 × 9.8 = 20 × a
204 = a = 0.2 m/s2