Do them all, please and thank you Two ice skaters push off of one another. Paul

Question

Do them all, please and thank you

Two ice skaters push off of one another. Paul has a mass of 65 kg and an acceleration of 5 m/s2 south. Tom has a moss of 75 kg, what is his acceleration? A 2000 kg submarine rises straight up to the surface of the ocean. It the seawater exerts an upward buoyant force of 16000 N and a resistive downward force of 1000 N, what is the submarine's acceleration? A jet flying at 104 m/s banks to make a horizontal turn of radius 4000 in. The mass of the jet is 1.5 Times 105. Calculate the magnitude of the necessary lift force. Three forces act on an object moving with constant velocity. One force of 40.0 N due west, the other force is 25 N due south. What is the magnitude amt direction of the third force. A travelling at a speed of 15 m/s slams on the breaks locking the wheels of his car. The coefficient of kinetic friction between the tires and the road is 0.64. What is the speed of the vehicle after 2 seconds have passed.

Explanation / Answer

6.

Mpaul= mass of paul = 65 kg

apaul= acceleration of paul = 5 m/s2

Mtom= mass of tom = 75 kg

from newtons' third law

Fpaul = Ftom

Mpaul apaul = Mtom atom

65 x 5 = 75 atom

atom = 4.33 m/s2

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