The new education question and answer asked students to say what they believe is the most crucial important element for a student to do in order to accomplished success. Out of the many responses, the one which that stood out was practice. Successful people were not born successful; they become successful via hard work and commitment. This is how you can attain your goals. the following are one of the answer and question example that you could actually work with to practice and elevate your information and also give you insights that may assist you to sustain your study in school.
A 40.-kilogram mass is moving across a horizontal surface at 5.0 meters per second. what is the magnitude of the net force required to bring the mass to a stop in 8.0 seconds?
From newtons second law of motion the rate of change of linear momentum is proportional to the resultant force. Momentum is the product of mass and the speed of a body.
In this case Momentum is 40 kg × 5 m/s = 200 kgm/s
From the same law we deduce that impulse (Ft) is equal to the change in momentum. Therefore, Ft = change in momentum.
Hence, to get the impulsive force we divide the change in momentum by time.
F = 200kgm/s ÷ 8 sec = 25 N
hence the force is 25 N
From the answer and question examples above, hopefully, they can definitely guide the student resolve the question they had been looking for and take notice of each and every thing declared in the answer above. You possibly will then have a discussion with your classmate and continue the school learning by studying the problem together.