A car is moving along a frictionless surface with a speed of 2 m/s to the left. You and your friend each come over and push the car at the same time. You exert a force of 6 N to the left, while your friend exerts a force of 6 N to the right. According to Newton’s first law, how will this action affect the car’s motion?

You are in an elevator that is initially at rest. At t=0, it heads downward and speeds up as a function of time. It experiences a velocity given by v(t) = (−2.00t²ĵ)² m S a) What is the normal force that you experience at t=1.20 s? Assume you have a mass of 70.0 kg. b) How far did the elevator drop in 1.20 s?

2. Given the vectors à = i - j+ k and b = 2i - j- 2k, determine the following: a. the scalar projection and vector projection of å on b b. the angle that b makes with each of the coordinate axes c. the area of the parallelogram formed by the vectors a and b

please help with question number 120

A 1,000 kg car traveling along the highway at 30 m/s slows to 10 m/s in 5.0 s. The magnitude of the average force acting on the car during this time is about * 5 O 1 kN O 2 kN O 3 kN O 4 kN O 5 kN

A hockey puck sits at rest on a frictionless surface. The puck is pushed with a particular constant force for 3 seconds and achieves a speed of 5 m/s. In order to achieve a the same speed with a force half as strong as the original one the hockey puck needs to be pushed for O 3 seconds 6 seconds 9 seconds

Determine the force Q-> when the block moves with constant velocity. Express your answer in vector form.

NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. The subway train shown is traveling at a speed of 38 mi/h when the brakes are fully applied on the wheels of car A, causing it to slide on the track, but the brakes are not applied on the wheels of cars B or C. 40 tons B The force FAB is 19.388 The force FBC is 50 tons ‒‒‒‒‒ C Knowing that the coefficient of kinetic friction is 0.35 between the wheels and the track, determine the force in each coupling. 40 tons lb Compression 8.6 lb Compression

A 845-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it reaches a speed of 30.0 m/s. What is the average force exerted on the car during this time?

A person catches a ball with a mass of 145 g dropped from a height of 60.0 m above his glove. His hand stops the ball in 0.0100 s. What is the force exerted by his glove on the ball? Assume the ball slows down with constant acceleration.