The traction force of the motor of the car is 2000 N. The car moves evenly at a speed of 72 km / h.
| September 20, 2021 | education
The traction force of the motor of the car is 2000 N. The car moves evenly at a speed of 72 km / h. What is the work done in 10 s.
The traction force of the motor of the car is 2000 N. The car moves evenly at a speed of 72 km / h. What is the work done in 10 s.
We are given:
F = 2000n
v = 72km / h = (72 1000m / 3600s) / (10m / s) = 20m / s
t = 10c
A-?
solution:
A = FS
S = VT = 20m / s * 10s = 200m
A = 2000n * 200m = 400000J
answer: A = 4 * 10 ^ 5 J
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
