Question
(a)A car accelerate 5 at a constant rate of 1.83m/s^2 along a flat straight road. The force acting on the car is 1.870 kN. Calculate the mass of the car. Give your answer to three significant figures.
Answer
4.1
(321 Votes)
Ellis
Elite · Tutor for 8 years
Answer
1022
Explanation
We can solve this problem by using Newton's Second Law of motion, which is expressed as F = mar, where F represents the force applied, m is the mass of the object and a is the acceleration. In our case, the question provides the values for the force (F) and acceleration (a), and we are asked to solve for the mass (m). To solve for mass, we rearrange the equation as mass = F/a. Plugging in the given values, we have m = 1.870 kilonewtons / 1.83 m/s^2. Note that 1 kilonewton is equal to 1000 Newtons, so we need to convert the force from kilonewtons to Newtons. Finally, after dividing 1870 Newtons by 1.83 m/s^2, we can find the mass of the car.