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Just couple of of Physics questions. I want to make sure I got them right.

1.How much force (tension must a rope withstand if it is used to accelerate a 1700 kg car at 0.50m/s^2 on a frictionless surface.

I got:

[tex](1700)(0.50)[/tex]

[tex]F=850\frac{kgm}{s^2}[/tex]

2.A 0.15kg baseball travelling at 35.0m/s strikes the catcher's mitt which recoils backwards 10 cm as it brings the ball to rest.

A) What was the force applied by the ball on the glove?

[tex](0.15)(35)[/tex]

[tex]F=5.25\frac{kgm}{s^2}[/tex]

B) What was the force applied by the glove on the ball?

I don't know how to do this one

3.A parachutist is moving downward with a force due to gravity of 630N experience a a fricitonal air resistence of 450N.

A)Calculate the acceleration of the parachutist.

[tex]630-450=180M(Down)[/tex]

B)Calclation the acceleration of the block.

[tex]A=\frac{F}{M}[/tex]

[tex]F=(M)(G)[/tex]

[tex]180=(M)(9.8)[/tex]

[tex]M=\frac{180}{9.8}[/tex]

[tex]M=18.36[/tex]

[tex]A=\frac{180}{18.36}[/tex]

[tex]A=9.8[/tex]

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# Homework Help: Grade 11 Physics Questions

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