Physics, 17.09.2019 05:30 itziabejar
In the design of a supermarket, there are to be several ramps connecting different parts of the store. customers will have to push grocery carts up the ramps and it is obviously desirable that this not be too difficult. the engineer has done a survey and found that almost no one complains if the force directed up the ramp is no more than 20n. ignoring friction, at what maximum angle theta, should the ramps be built, assuming a full 30-kg grocery cart?
Answers: 1
Physics, 22.06.2019 10:30
The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.
Answers: 1
Physics, 22.06.2019 18:30
In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km.h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.
Answers: 2
In the design of a supermarket, there are to be several ramps connecting different parts of the stor...
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