How far from the base of the cliff would the diver have landed if the diver initially had been moving horizontally with speed 2v?
How far from the base of the cliff would the diver have landed if the diver initially had been moving horizontally with speed 2v?
Correct option C 2dThe time in the air for a horizontal projectile is dependent on the height and independent of the initial speed. Since the time in the air is the same at speed v and at speed 2v the distance d = vt will be twice as much at a speed of 2v.
How does the liquid pressure on a diver change if he moves horizontally?
(ii) When the diver moves horizontally, his depth from the free surface remains constant and hence the pressure on him remains unchanged.
What is the longest distance dived?
Severinsen swam 202 meters (662.73 feet) underwater on a single breath in La Paz, Baja California Sur, Mexico.
What is the velocity of a cliff diver?
Here are a few fast facts about the science of cliff diving: Take-off jump – Up to 0.8m. Rotation speed – 2.4 per second. Vertical velocity – 22.5m per second.
Does pressure change horizontally?
Air pressure in different places is not equal. Pressure horizontally can increase or decrease. For example, if we move from north to south, the pressure decreases.
Does pressure change more horizontally or vertically?
Gravity, G The vertical pressure gradient is much larger than the horizontal pressure gradient (~100 x), yet winds don’t blow straight up. Why? Gravity acts to stop, or slow, the vertical flow of air, so vertical winds are much less than horizontal winds.
What is a change in pressure with horizontal distance called?
This change in pressure with horizontal distance is termed as pressure gradient.
What is the world’s longest dive without oxygen?
Professional breath hold diver Budimir Šobat’s world record of 24 minutes and 37 seconds holding his breath underwater.
What is the highest distance at sea?
The longest continuous east–west distance at sea is 22,471 km (13,963 mi) along the latitude 55°59’S, south of Cape Horn, South America.
Can a human dive 400 feet?
The world record for free diving is currently held by Arnaud Jerald, who dived to a depth of 122 meters (400 feet) in July 2023 without oxygen tank. However, diving to such great depths without scuba gear is incredibly dangerous and requires years of training and experience.
How long must a diver wait after a dive deeper than 25 feet to fly?
Both PADI and DAN recommend a minimum preflight surface interval of at least 12 hours for single dives and 18 hours for repetitive dives or multiple days of diving. NAUI recommends 24 hours after any dive before flying to altitude.
What is the distance of the scuba divers dive from sea level?
PADI (Professional Association of Diving Instructors) estimates that recreational divers can dive to a maximum depth of 130 feet. But they have a limited amount of time to do so before their health is jeopardized by the high water pressure and the inhalation of compressed air.
How far below sea level can a human dive?
That means that most people can dive up to a maximum of 60 feet safely. For most swimmers, a depth of 20 feet (6.09 meters) is the most they will free dive. Experienced divers can safely dive to a depth of 40 feet (12.19 meters) when exploring underwater reefs.
How far has a human dived in the ocean?
It’s been a record-breaking expedition in more ways than one. Vescovo’s trip to the Challenger Deep, at the southern end of the Pacific Ocean’s Mariana Trench, back in May, was said to be the deepest manned sea dive ever recorded, at 10,927 meters (35,853 feet).