The mass of a 1600 kinetic energy car travelling at 8m/s is determined as 50 kg.
How to calculate the mass of the car?
The mass of the car is calculated by applying the following formula as shown below;
K.E = ¹/₂mv²
where;
- m is the mass of the car
- v is the speed of the car
- K.E is the kinetic energy of the car
The kinetic energy of the car is given as 1600 J, the speed of the car = 8 m/s.
The mass of the car is calculated as follows;
mv² = 2K.E
m = 2K.E / v²
m = (2 x 1600 J ) / ( 8²)
m = 50 kg
The complete question is below:
Find the mass of a 1600 kinetic energy car travelling at 8m/s and the assume gravity is 10m/s squared