1)A car with a mass of 1535 kg is parked on a street which has a slope of 25 deg

Question

1)A car with a mass of 1535 kg is parked on a street which has a slope of 25 degree.The brakes fail, and it begins to roll down the street.What speed will the car have after it has rolled 20 ?

a)18.8 m/s

b)9.4 m/s

c)19.8 m/s

d)24 m/s

e)12.9 m/s

2) a helicopter is going up at a constant velocity of +11 m/s when a water bottle falls out the door of the helicopter.If the helicopter is 60 m above the ground when the bottle falls out, how long will it take the bottle to hit the ground?(ignore air resistance)

a)5.45 s

b)4.80 s

c)3.50 s

d)6.12s

e)2.55s

4) A dolphin jumps out of water with a speed of 12m/s at an angle of 37 degree.how lobg is the dolphin in the air before it lands back in the water ?

a)1.5s

b)2.4s

c)1.0s

d)3.0s

e)0.80s

Explanation / Answer

1)b

2)d

4)d

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.