Homework Help: Physics

Posted by Katherine on Friday, October 8, 2010 at 3:59pm.

I have some questions regarding motion problems.
If I have a ball at initial velocity of 50m/s at 35 degree angle, to find horizontal and vertical components, I do the following:
Vertical is 50(sin35)=28.68-rounded to 29
Horizontal = 50 (cos 35)=40.96-rounded to 42
Maximum height ball hit 29 m/s^2 /2(9.81m/s^2)= 42.90
Range of ball:29/4.92 = 5.9 s
take 41 (horizontal velocity) times 2 =84 meters

Could you just check this for me-thank you-if its wrong, just direct me where I did it incorrectly

Physics-above question -please check it - Katherine, Friday, October 8, 2010 at 4:00pm
Just please check my calculations-
Physics - bobpursley, Friday, October 8, 2010 at 4:29pm
Yes, I agree, but I would not have rounded to two significant figures, it pains me to to do that.
Physics-I think I did range wrong-please check - Katherine, Friday, October 8, 2010 at 4:36pm
Hi, I think I did the range calculation incorrectly-Shouldn't I have done:
Horizontal 40.96 times 5.9 s, not 2-I'm not sure where I got the two
My new answer should be 40.96 x 5.9 = 241.66m

I'll remember about rounding
Physics - bobpursley, Friday, October 8, 2010 at 4:40pm
yes, I missed that on the time.
Physics - Katherine, Friday, October 8, 2010 at 4:47pm
Thanks for your help I really appreciated it!!

Answer this Question

Related Questions

physics - A ball is thrown with an initial velocity of 20 meters per second at ...
Science - A golf ball was hit and projected in an angle of 60 degrees with the ...
Physics - I have two different questions I can't figure out. 1) Projectile ...
AP PHYSICS - A golf ball is hit with an initial velocity of 50m/s at an angle of...
Physics - A kickoff sends a football with an initial velocity of 25 m/s at an ...
physics - Two balls of equal mass collide and stick together as shown in the ...
physics - a golf ball is launched at a 37 degree angle from the horizontal at an...
Physics HELP PLEASE! - A kickoff sends a football with an initial velocity of 25...
physics - A golf ball is drive. With an initial velocity of 25 m/s at an angle ...
Physics - A soccer player kicks a ball from the ground into the goal, which is ...

For Further Reading

First Name:
School Subject:
Answer: