A bicycle tire of radius 0.40 m and mass 1.7kg is rotating at 62.9 rad/s. What torque is necessary to stop the tire in 2.2 s?
Answer in units of N · m.
I asked this before but it got answered by a bot who links a virus website. Can someone please help me?

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.

See the attachment and solve question 5th

Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)