Physics, 21.10.2020 16:01 lafuiciosa10
A 50 kg bicyclist starts his ride down the road with an acceleration of 1m/s2 in air with a density of 1.2 kg/m3. If his velocity at a given moment is 2m/s, how much force is he exerting? Assume the area of his body is 0.5m^2.
a. The bicyclist is exerting 1.1 N of force.
b. The bicyclist is exerting 49 N of force.
c. The bicyclist is exerting 50 N of force.
d. The bicyclist is exerting 51 N of force.
Answers: 1
Physics, 22.06.2019 05:20
Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to.in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?
Answers: 1
Physics, 22.06.2019 10:00
Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?
Answers: 2
Physics, 22.06.2019 11:00
If a simple machine reduces the strength of a force, what must be increased?
Answers: 3
A 50 kg bicyclist starts his ride down the road with an acceleration of 1m/s2 in air with a density...
Mathematics, 19.03.2021 01:50
Mathematics, 19.03.2021 01:50
Mathematics, 19.03.2021 01:50
Mathematics, 19.03.2021 01:50
Mathematics, 19.03.2021 01:50
Business, 19.03.2021 01:50
Mathematics, 19.03.2021 01:50
Business, 19.03.2021 02:00
Mathematics, 19.03.2021 02:00
Mathematics, 19.03.2021 02:00