What was the driver''s reaction time

Reference no: EM1313373

Q1. A woman stands on a scale in a moving elevator. Her mass is 60.9 kg, and the combined mass of the elevator and scale is an additional 819 kg. Starting from rest, the elevator accelerates upward. Through the acceleration, the hoisting cable applies a force of 9410 N. What does the scale read during acceleration?

Q2. A driver travelling at 56.0 km/h sees the chicken dash out onto the road and slams on the brakes. Accelerating at -7 m/s2, car stops just in time 23.80 m down the road. What was the driver's reaction time?

Reference no: EM1313373

Questions Cloud

Normal sequence in which the below budgets are prepared : Multiple choice questions on budgetary control system - Which of the represents the normal sequence in which the below budgets are prepared.

Mean and median for given discrete distribution : Write all the possible samples of size 2 and calculate the average or median of each one.

Calculation of irr, npv of a project with equal cash flows : Calculation of IRR, NPV of a project with equal cash flows through life and what is the project's IRR

Reason of unemployment : Discuss at least 3 reasons why and how workers become unemployed (be specific about causes), and also cite 3 reasons unemployed workers finally land new jobs or get rehired.

What was the driver''s reaction time : A woman stands on a scale in a moving elevator. Her mass is 60.9 kg, and the combined mass of the elevator and scale is an additional 819 kg. Starting from rest, the elevator accelerates upward. Through the acceleration, the hoisting cable applies a ..

Study use of collagen and its role in face cream : Face and body creams that are marketed to women in order to "rejuvenate the skin, and get rid of the fine lines and wrinkles" consists of large quantities of collagens.

What would happen to the equilibrium price : Illustrate what would happen to the equilibrium price also quantity of lattés if the cost of producing steamed milk

What is the magnitude of the acceleration of box : A worker drops a wrench from the top of a tower 88.00 m tall. With what velocity does the wrench strike the ground? (Suppose the positive direction is upward.)

Balanced budget and finding capital labour ratio : Consider the following Solow model of growth. Both population and work force grow at the rate of n=1% per year in a closed economy.

User Account

All Pages