A mass of 10 kg moves with an acceleration of 10 m s-2, the force on it is
Correct answer: C. 100 N
- A. 5 N
- B. 50 N
- C. 100 N
- D. 25 N
Explanation
To determine the force exerted on the object, apply Newton's Second Law of Motion, which states that the force (F) is the product of mass (m) and acceleration (a), or F = ma. In this scenario, the mass is 10 kg and the acceleration is 10 m s-2. Therefore, F = 10 kg × 10 m s-2 = 100 N, making Option C correct. Options A, B, and D are incorrect as they derive from incorrect calculations, providing values lower than the actual force of 100 N.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Force and Motion
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
Practise Force and Motion
1,416 free Force and Motion MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Force and Motion questions
When force of 1 N is applied on a body of mass 100 g then the acceleration would be
An object is projected upwards with a velocity of 100 m/s. It will strike the ground after (approximately)
A two-car train, with data as given in Fig. is pulled by a child on a horizontal frictionless surface. The strings are massless. The force exerted by car A on the string S is:
The average force necessary to stop a hammer with 25 N s momentum in 0.05 s expressed in 'N' is
A projectile can have the same range R for two angles of projection. If t1 and t2 are the times of nights in the two cases, then product of the time of flights is proportional to:
A cricket ball of mass 0.5 kg strikes a bat normally with a velocity of 30 m s-1 and rebounds with a velocity of 20 ms-1 in the opposite direction. The impulse of the force exerted by the ball on the bat is