Q. An object is at rest on a frictionless surface. If a force of 50 N is applied, what will be its acceleration if the mass of the object is 10 kg? (2022)
A.
2 m/s²
B.
5 m/s²
C.
10 m/s²
D.
20 m/s²
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Solution
Acceleration a = F/m = 50 N / 10 kg = 5 m/s².
Correct Answer: B — 5 m/s²
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Q. An object is in equilibrium under the action of three forces: 10 N, 15 N, and 20 N. What is the resultant force acting on the object? (2019)
A.
0 N
B.
5 N
C.
10 N
D.
15 N
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Solution
In equilibrium, the resultant force is 0 N.
Correct Answer: A — 0 N
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Q. An object of mass 8 kg is acted upon by a net force of 32 N. What is the acceleration of the object? (2019)
A.
2 m/s²
B.
3 m/s²
C.
4 m/s²
D.
5 m/s²
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Solution
Acceleration = Net force / Mass = 32 N / 8 kg = 4 m/s².
Correct Answer: C — 4 m/s²
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Q. An object of mass 8 kg is moving with a velocity of 5 m/s. What is its momentum? (2020)
A.
20 kg·m/s
B.
30 kg·m/s
C.
40 kg·m/s
D.
50 kg·m/s
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Solution
Momentum = Mass × Velocity = 8 kg × 5 m/s = 40 kg·m/s.
Correct Answer: A — 20 kg·m/s
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Q. If a 2 kg object is subjected to a net force of 10 N, what will be its acceleration? (2022)
A.
2 m/s²
B.
5 m/s²
C.
10 m/s²
D.
20 m/s²
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Solution
Using F = ma, a = F/m = 10 N / 2 kg = 5 m/s².
Correct Answer: B — 5 m/s²
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Q. If a 4 kg object is moving with a velocity of 5 m/s, what is the momentum of the object? (2020)
A.
10 kg m/s
B.
15 kg m/s
C.
20 kg m/s
D.
25 kg m/s
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Solution
Momentum = mass × velocity = 4 kg × 5 m/s = 20 kg m/s.
Correct Answer: C — 20 kg m/s
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Q. If a 5 kg object is moving with a velocity of 10 m/s, what is its kinetic energy? (2019)
A.
25 J
B.
50 J
C.
100 J
D.
200 J
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Solution
Kinetic Energy = 0.5 × Mass × Velocity² = 0.5 × 5 kg × (10 m/s)² = 250 J.
Correct Answer: C — 100 J
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Q. If a force of 10 N is applied to a mass of 2 kg, what will be the acceleration of the mass? (2019)
A.
2 m/s²
B.
5 m/s²
C.
10 m/s²
D.
20 m/s²
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Solution
Using F = ma, a = F/m = 10 N / 2 kg = 5 m/s².
Correct Answer: B — 5 m/s²
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Q. If a force of 15 N is applied to a 3 kg object, what is the object's acceleration? (2023)
A.
3 m/s²
B.
5 m/s²
C.
7 m/s²
D.
10 m/s²
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Solution
Using F = ma, a = F/m = 15 N / 3 kg = 5 m/s².
Correct Answer: B — 5 m/s²
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Q. If a force of 50 N is applied to a 25 kg object, what is the acceleration of the object? (2022)
A.
1 m/s²
B.
2 m/s²
C.
3 m/s²
D.
4 m/s²
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Solution
Using F = ma, a = F/m = 50 N / 25 kg = 2 m/s².
Correct Answer: B — 2 m/s²
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Q. If a force of 50 N is applied to a 25 kg object, what is the resulting acceleration? (2022)
A.
1 m/s²
B.
2 m/s²
C.
3 m/s²
D.
4 m/s²
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Solution
Acceleration = Force / Mass = 50 N / 25 kg = 2 m/s².
Correct Answer: B — 2 m/s²
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Q. If a force of 50 N is applied to a 25 kg object, what will be its acceleration? (2022)
A.
1 m/s²
B.
2 m/s²
C.
3 m/s²
D.
4 m/s²
Show solution
Solution
Acceleration = Force / Mass = 50 N / 25 kg = 2 m/s².
Correct Answer: B — 2 m/s²
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