- #1
Raza
- 203
- 0
Hello,
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 traveling 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]
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 traveling 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]