A book slides off a horizontal tabletop. As it leaves the table's edge, the book has a horizontal velocity of magnitude v0. The book strikes the floor in time t. If the initial velocity of the book is halved, what happens to the horizontal distance the book travels while it is in the air? Halved Doubled They travel the same distance Depends on the vertical velocity
You'll get a detailed, step-by-step and expert verified solution.
Correct & Verified Answers
No AI-Generated Answers
Video Solution for Difficult Questions
Work With Experts to Reach at Correct Answers![A penguin of 7 kg stands at the edge of an ice cliff and dives into the ocean below. The penguin has an initial velocity of 5 ms−1 and at an angle of 60∘ with respect to the horizontal. The cliff is 15 m above the water level. Assume air resistance is negligible and take the value of the acceleration due to gravity as 9.81 ms−1. Calculate: a) The time it takes for the penguin to hit the water. [3 marks] b) The horizontal distance travelled by the penguin before hitting the water. [2 marks] c) The velocity of the penguin just before hitting the water. [3 marks] d) The momentum of the penguin in unit vector notation at the highest point (with respect to the water level) of its projectile. [2 marks] e) Supposed that upon splashing on the water, the magnitude of the vertical component of the velocity found in part (c) above is being reduced by half in 0.2 seconds while the horizontal component remained the same, determine the impulsive force experience by the penguin. [2 marks].](https://www.doubtrix.com/uploads/editor/7669666301lraWjZPvzV.jpg)
