A 66-kg man stands on a bathroom scale inside an elevator. The scale measures in units of newtons. (a) The elevator accelerates upward from rest at a rate of 1.15 m/s2 for 1.50 s. What does the scale read during this 1.50 s interval? |N (b) The elevator continues upward at constant velocity for 8.50 s. What does the scale read now? N (c) While still moving upward, the elevator's speed decreases at a rate of 0.650 m/s² for 3.00 s. What is the scale reading during this time? N

You are standing on a bathroom scale inside an elevator. Your weight is 144 lb, but the reading of the scale is 112 lb. a. What is the acceleration of the elevator? If the acceleration is in upward direction, enter a positive value and if it is in downward direction, enter a negative value. answer in m/s^2 b. see attached

A 68 kg lady stands on a bathroom scale on elevator. Starting from rest, the elevator accelerates upward, getting its maximu  speed of 1.18 m/s in 0.900s. It travels with constant speed for the next 4.00s. Then, the elevator undergoes uniform acceleration in negative y direction for 2 s and comes to rest. What does the bathroom scale register 1) before the elevator starts to go up, 2) during the first 0.900s, 3) while it is traveling at constant speed, 4.) during the time its slowing down?

A crate of mass m = 24 kg rides on the bed of a truck attached by a cord to the back of the cab as in the figure below. The cord can withstand a maximum tension of 64 N before breaking. Neglecting friction between the crate and truck bed, find the maximum acceleration the truck can have before the cord breaks. (Enter the magnitude of the maximum acceleration in the forward direction.) m/s?

True or false: If an object accelerates from rest covering 2.0m in 1.0s in the forwards direction then, even though its average velocity is 2.0m/s its instantaneous velocity (or vf in your equations) will be 4.0m/s at t=1.0s and its initial velocity (vi in your equations) will be 0.0m/s at t=0

Suppose that your mass is 49 kg, and you are standing on a scale fastened to the floor of an elevator. The scale measures force and is calibrated in newtons. What does the scale read (in units of Newtons) when the elevator is descending with downward acceleration of magnitude 1.9 m/s2?  Take g=9.8 m/s2.

A child on a toboggan sits at rest on the top of a tobogganing hill. If the child travels 70.0 m [downhill] in 5.3 s while accelerating uniformly, what acceleration does the child experience?

A 30 kg cannonball is shot at a sailing ship. When it hits the wooden sides of the ship, it just barely punches through the wooden hull, applying a 200 000 N force to the ship the whole time it was stopping. → If the cannonball was originally travelling at 300m/s, how long would it take to completely stop in the hull of the ship assuming constant acceleration.

Make a free-body diagram and explain the solution.

= m = 2 kg boxes move along a conveyer belt at v = 3 m/s. The coefficient of friction between the boxes and the belt is us 0.4. When the emergency shutoff for the conveyer is triggered, it is desirable for the boxes to not slip. Assuming the emergency shutoff decelerates the belt at a constant rate, and all the belts are horizontal, what is the shortest shutoff time to ensure that no boxes slip? t = S Part 2 of 2 What would the minimum shutoff time be if somewhere along the belt there was a downward slope of 20°? t = S