I need help with question 7? 11.9.10.7.8.Find the dot product between a force of 450 N directed at 20° north of east and adisplacement of 15 m to the north.If a 2.5 kg object falls from a height of 2.0 m it will have a kinetic energy of50 J just before it hits the ground. If the same object falls from a height of 4.0 m abovethe ground, the kinetic energy it has just before hitting the ground will beK2.0a) 50 Jb) 71 Jc) 100 Jd) 200 JIn the same situations as the previous question, if the time for the object to fallfrom a height of 2.0 m is t2.0, then the time to fall from a height of 4.0 m will bedab) t4.0 = t2.0a) t4.0 = √2t2.0c) t4.0 = 2t2.01) +d) t4.0AVTOMasA spring attached to the ceiling has a large bucket hanging from it. When thebucket is empty, the handle of the bucket ends up 0.60 m from the ceiling. A 10kg pumpkinis put in the bucket which stretches the spring. The handle of the bucket ends up 1.6 m fromthe ceiling when the system comes to rest.=apballgo sullA 570 g cart has really good wheelsand is placed on a ramp that makes an angle of24° with the horizontal. A string is tied fromone end of the cart to the top of the ramp,and the string is parallel to the ramp. (Seethe image to the right.)(a) Draw a free body diagram for the pumpkin once it has come to rest in this situation andlabel the size of the forces.(b) How far from the coceiling will the bucket handle be when a 15 kg pumpkin is placed inthe bucket instead of a 10 kg one?How much tension will there be in the stringwhen the cart is sitting motionless on theramp?tension T=m4. t2.00VASi bil qabulbnou

Name: I need help with question 7? 11.9.10.7.8.Find the dot product between
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: I need help with question 7? 11.9.10.7.8.Find the dot product between a force of 450 N directed at 20° north of east and adisplacement of 15 m to the north.If a 2.5 kg object falls from a height of 2.0 m it will have a kinetic energy of50 J just befo