1:Which of the following is considered to be an \" accelerator\" in a automobile

ID: 1417100 • Letter: 1

Question

1:Which of the following is considered to be an " accelerator" in a automobile?

Select one:

a. brake pedal

b. gas pedal

c. steering wheel

d. all the above

e. none of above

2:When we say that light objects and heavy objects fall at the same rate, what assumption are we making?

Select one:

a. they have the same shape

b. they are made of the same material

c. they are falling in a vacuum

d. they have the same size

e. none of above

3: If a car changes speed from 60 mph to 66 mph in 3 minutes, its average acceleration is

Select one:

a. 6 mph/min

b. 3 mph/min

c. 1 mph/min

d. 2 mph/min

e. 18 mph/min

4:A car is acceleration at 4 mph/sec. At some time it is traveling at 65 mph. How fast will it be going 3 sec later?

Select one:

a. 63 mph

b. 80 mph

c. 77 mph

d. 79 mph

e. none of above

1 ans gas padel

2 ans

they are falling in vaccum

3 ans

it change 6mph in 3 minute

so average accelartion is 6mph/3 minute =2 mph/minute

after 3 seec its speed change = 3*4 = 12mph

so speed after 3 sec = 65+12=77mph

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