Big Boris (90kg) skates backward, 1.0 meter ahead of small skater Sofia (45 kg) , holding her hand as they travel +3.0 m/s . At the 30-second mark, Boris starts pulling Sofia past him, so that by time 32.0 s she is travelling 4.333 m/s along the ice. What was Sofia's average acceleration during this move, relative to the ice? +0.667 m +2.167 "/s² +0.135 ™/s +1.333 ™/g? +1.00 m/s² +2.0 m2

Big Boris (90kg) skates backward, 1.0 meter ahead of small skater Sofia (45 kg) , holding her hand as they travel +3.0 m/s . At the 30-second mark, Boris starts pulling Sofia past him, so that by time 32.0 s she is travelling 4.333 m/s along the ice. What was Sofia's average acceleration during this move, relative to the ice? +0.667 m +2.167 "/s² +0.135 ™/s +1.333 ™/g? +1.00 m/s² +2.0 m2

Name: Big Boris (90kg) skates backward, 1.0 meterahead of small skater Sofi
Uploaded: 2024-03-20T06:57:57.000Z
Channel: Bartleby
Description: Big Boris (90kg) skates backward, 1.0 meterahead of small skater Sofia (45 kg) , holding herhand as they travel +3.0 /s .At the 30-second mark, Boris starts pulling Sofiapast him, so that by time 32.0 s she is travelling4.333 m/s along the ice.What

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 96CP: A body of mass m moves in a horizontal direction such that at time t its position is given by...

See similar textbooks

Similar questions

. At the local farm, you buy a flat of strawberries and place them onthe backseat of the car. On the way home, you begin to brake asyou approach a stop sign. At first the strawberries stay put, but asyou brake a bit harder, they begin to slide off the seat. Explain.
A 15 kg object at rest experiences 120 N of force for a duration of 0.20s. What is the final velocity of the object after the application of the force?
A 60 kg block is pushed by a horizontal forcecausing the block to accelerate by 1 m/s2. The block has an initial velocity of 5 m/s. The coefficient of friction between the block andthe horizontal floor is 0.40. Find the velocity of the block after 5seconds?a. 10 m/s b. 12 m/sc. 11 m/s d. 9 m/s
A car of mass ?push=1200 kg is capable of a maximum acceleration of 4.00 m/s2. If this car is required to push a stalled car of mass ?stall=1500 kg, what is the maximum magnitude of the acceleration ?a of the two‑car system? ?=
Balancing carefully, three boys inch out onto a horizontal tree branch above a pond, each planning to dive in separately. The third boy in line notices that the branch is barely strong enough to support them. He decides to jump straight up and land back on the branch to break it, spilling all three into the pond. When he starts to carry out his plan, at what precise moment does the branch break? Explain. Suggestion: Pretend to be the third boy and imitate what he does in slow motion. If you are still unsure, stand on a bathroom scale and repeat the suggestion.
A 1500 kg automobile travels at a speed of 105 km/h along a straight concrete highway. Faced with an emergency situation, the driver jams on the brakes, and the car skids to a stop. (a) What will be the car's stopping distance for dry pavement ( = 0.85)? (b) What will be the car's stopping distance for wet pavement ( = 0.60)?
Anna Shcherbakova is a 2022 Beijing Olympics figure skating gold medalist for ladies’ singles.After warming up she starts her practice by skating towards the middle of the ice rink, 14 metersfrom the entrance. However, this time, one of her friends decided to trick her by pushing hertowards the middle at a velocity of 1.2 m/s (disregard friction between the ice and her skates).Recovering from the shock 2 seconds after, she starts pushing herself forward at an accelerationof 0.5 m/s2. What velocity will she have when she reaches the middle of the rink?
The average speed of a nitrogen molecule in air is about 686 m/s, and its mass is 4.85 x10-26 kg. If it takes 3.78 x 10-13 s for a nitrogen molecule to hit a wall and rebound with the same speed but moving in the opposite direction, what is the magnitude of the average acceleration of the molecule during this time interval?
A car, initially at rest, accelerates at 9.0 m/s2 for a total of 5.1 s. How far did it go in this time?
A 2700 kg car traveling to the north is sloweddown uniformly from an initial velocity of 36.6m/s by a 6810 N braking force acting oppositethe car’s motion.a) What is the car’s velocity after 2.19 s?Answer in units of m/s. b) How far does the car move during the 2.19 ss?Answer in units of m. c) How long does it take the car to come to acomplete stop?Answer in units of s.
A 5.05 • 105-kg rocket is accelerating straight up. Its engines produce 1.15 • 107 N of thrust, and air resistance is 4.45 • 106 N . What is the rocket’s acceleration, using a coordinate system where up is positive?
s The giant Pacific octopus (Enteroctopus dofleini) has a typical mass of 15 kg and can propel itself bymeans of a water jet when frightened. (a) If it expels water at amass rate of 2.4 kg>s and with a speed of 27 m>s, what thrust canit generate? (b) If the seawater exerts a resistive force of 18 N onthe octopus, what acceleration can it achieve? (c) If the octopusmaintains its jet propulsion for 3.0 s, what maximum velocitycan it attain?