A student records the following data while comparing the pulling forces on two…
PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A student records the following data while comparing the pulling forces on two vehicles:
Vehicle A: mass 1200kg, acceleration 2.0m s−2, quoted force 2.4kN
Vehicle B: mass 150kg, acceleration 1.5m s−2, quoted force 225kg m s−1
Answer the questions below:
(i) For each vehicle, verify whether the quoted force value has the correct numerical value and correct unit.
(ii) Wherever an error is found, calculate the correct force and write it in scientific notation in newtons.
(iii) Convert the larger of the two correct forces completely into fundamental SI units.