# Question: During liftoff a hot air balloon accelerates upward at a rate

During liftoff, a hot-air balloon accelerates upward at a rate of 3.0 m/s2. The balloonist drops an object over the side of the gondola when the speed is 15 m/s.

(a) What is the objectâ€™s acceleration after it is released (relative to the ground)?

(b) How long does it take to hit the ground?

(a) What is the objectâ€™s acceleration after it is released (relative to the ground)?

(b) How long does it take to hit the ground?

## Relevant Questions

Anew-car owner wants to show a friend how fast her sports car is. The friend gets in his car and drives down a straight, level highway at a constant speed of 60 km/h to a point where the sports car is waiting. As the ...What is the acceleration for each graph segment in Fig. 2.23? Describe the motion of the object over the total time interval. A senior citizen walks 0.30 km in 10 min, going around a shopping mall. (a) What is her average speed in meters per second? (b) If she wants to increase her average speed by 20 % when walking a second lap, what would her ...A rifle bullet with a muzzle speed of 330 m/s is fired directly into a special dense material that stops the bullet in 25.0 cm. Assuming the bulletâ€™s deceleration to be constant, what is its magnitude? Figure 2.24 shows a plot of velocity versus time for an object in linear motion. (a) What are the instantaneous velocities at t = 8.0 s and t = 11.0 s? (b) Compute the final displacement of the object. (c) Compute the ...Post your question