HELP ME take your time What does a 1kg pineapple weigh on Mars if 3397000m is its radius, and 6.42x10^23 kg is its mass?

2. An automobile rounds a curve of radius 75.0m on a flat road at a speed of 24m/s. What centripetal acceleration is necessary to keep the car on the curve?

3. The fastest human footspeed record is by Usain Bolt at 44.64 m/s. What centripetal force would be needed for him to maintain this speed around the curve of the track if the curve has a radius of 36.5 m and his mass is 94 kg?

2. Ac= 7.68 m/s ^2

3. Fc= 5132 N

Explanation:

2.

ac= ?                                                   ac=

V= 24 m/s                                           ac=

r= 75.0 m                                            ac= 7.68 m/s^2

3.

Fc=?                                                  Fc= 94*

m=94 kg                                           Fc=

v=44.64 m/s                                     Fc=

r= 36.5 m                                         Fc= 5132 N

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vapour or gas assuming atmospheriv pressure