Part one:
you are driving at the speed of 26.3 m/s
(58.844 mph) when suddenly the car i...
Physics, 08.11.2019 11:31 alexisss23
Part one:
you are driving at the speed of 26.3 m/s
(58.844 mph) when suddenly the car in front
of you (previously traveling at the same
speed) brakes and begins to slow down with
the largest deceleration possible without skidding. considering an average human reaction,
you press your brakes 0.519 s later. you also
brake and decelerate as rapidly as possible
without skidding. assume that the coefficient
of static friction is 0.811 between both cars’
wheels and the road.
the acceleration of gravity is 9.8 m/s
calculate the acceleration of the car in front
of you when it brakes.
answer in units of m/s^2.
part two: calculate the braking distance for the car in
front of you.
answer in units of m.
part three:
find the minimum safe distance at which you
can follow the car in front of you and avoid
hitting it (in the case of emergency braking
described here).
answer in units of m
Answers: 2
Physics, 21.06.2019 19:30, kayleegeise
Identical marbles are released from the same height on each of the following four frictionless ramps . compare the speed of the marbles at the end of each ramp. explain your reasoning
Answers: 3
Physics, 22.06.2019 00:50, gungamer720
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?
Answers: 1
Physics, 22.06.2019 06:30, vaelriacb9300
Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.
Answers: 2
Mathematics, 12.02.2021 01:00
Biology, 12.02.2021 01:00
Mathematics, 12.02.2021 01:00
Physics, 12.02.2021 01:00
Social Studies, 12.02.2021 01:00
Geography, 12.02.2021 01:00
Biology, 12.02.2021 01:00
Mathematics, 12.02.2021 01:00