science
Grade-11
Easy
Question
Which of the following is not the effect of force?
- A force can move a stationary object
- A force can change the mass of an object
- A force can change the shape of an object
- A force can change the weight of an object
The correct answer is: A force can change the mass of an object
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A horse applied a horizontal force of 60 N on a wooden cart of mass 20 kg that is resting on the ground. If the friction is 5 N, calculate the acceleration of the box.
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