chameleons catch insects with their tongues, which they can extend to great lengths at great speeds. A chameleon is aiming for an insect at a distance of 16 cm. The insect will sense the attack and move away 45 ms after it begins. In the first 45 ms, the chameleon's tongue accelerates at 345 m/s2 for 20 ms. Does its tongue reach the 16 cm extension needed to catch the insect during this time?

Q: You walk 5 meters from point A to point B in 3 seconds. You then come back to point A in another 2…

A: Given, Distance = 5m Time taken to reach point A to B = 3 sec Time taken to reach point A back = 2…

Q: 20. A car initially traveling North at 5 m/s and has a constant acceleration of 2m/s2 northward.…

A: Given  Initial velocity of car = 5 m/s in North direction constant acceleration = 2m/s2 northward…

Q: A rock, released at rest from the top of a tower, hits the ground after 1.5 s. What is the speed of…

A: When the rock is released from the top of the tower, its potential energy  is converted to kinetic…

Q: Timnit has to pull the weeds in her mother's garden. She notices a caterpillar crawling along the…

A: Given quantities: The speed of the caterpillar (V) = 0.125 m/s Time taken to travel (t) = 8 seconds…

Q: . A stone is thrown downward from a tower with an initial velocity of 3 m/s. The height of tower is…

A:

Q: June walks for 15 minutes at 0.165 km/ min but then she remembers she is suppose to meet her friend…

A:

Q: An object moves along the positive x-axis with a speed of V, =4 m/s for 2 seconds, then moves along…

A: Given: The velocity V1 is 4 m/s. The time duration is 2 s. The velocity V2 is 7 m/s. The time…

Q: A ball is thrown vertically upward. It has a speed of 10 m/sec when it has reached one half of its…

A: Given: A ball is thrown vertically upward with speed, u = 10 m/sec. When it reached one half of its…

Q: A rock is thrown upward at 15 m/s. How fast is it moving if it is 5 m high?

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Q: v (m/s) 4 2 2 3 t(s)

A:

Q: A rocket-powered sled accelerates from rest. After = 10 s it has traveled a distance x = 400 m. What…

A:

Q: Part (a) Calculate the height of the cliff in m.

A: Given that,Initial velocity, u=7.9 mstime taken, t=3.1 sgravitational acceleration, g=-9.8ms2  (…

Q: 1. A stone is thrown downward from a tower with an initial velocity of 3 m/s. The height of tower is…

A:

Q: A balloonist, riding in the basket of a hot air balloon that is rising vertically with a constant…

A:

Q: My cat, Pretty Kitty, decides to jump off her cat tower, and it takes her 0.61 s to reach the…

A: Given data The time required by the cat to reach the ground is t = 0.61 s. Therefore, the final…

Q: While dusting a bookshelf at the local college's huge library, Jean accidentally knocks a book off…

A: From equation of motion, final velocity of the body is v2 = u2 + 2as Where, v = final velocity u =…

Q: Gretchen runs the first 4.0 km of a race at 6.0 m/s. Then a stiff wind comes up, so she runs the…

A: Given data The distance of the first portion of the race is given as d1 = 4 km. The velocity of…

Q: A small rock is thrown straight up from the edge of the roof of a building. Air resistance can be…

A: We are given the maximum height reached by rock above roof. We know that at top most point speed is…

Q: Omar throws a rock down with speed 24.5 m/s from the top of a tower. The rock hits the ground after…

A: When the rock is being thrown by Omar from the top of the tower it will undergo a free fall since it…

Q: While dusting a bookshelf at the local college's huge library, Jean accidentally knocks a book off…

A: Given Height from book dropped = h = 3.48 m Initial velocity = u = 0 m/s We have to calculate the…

Q: 8. Three kids took a Carousel Ride in the amusement park. Maria took spot A, Juan took spot B and…

A: The linear velocity  of body in terms radius and angular  velocity  is given by      V = w × r…

Q: An airplane starts from rest and accelerates at 10.8 m/s?. What is its speed at the end of a 500…

A:

Q: 15 m/s Two stones (A and B) are thrown at the same time from a top of building of height 50m. Stone…

A:

Q: A speed skater moving across frictionless ice at 8.3 m/s hits a 5.6m- wide patch of rough ice. She…

A:

Q: While dusting a bookshelf at the local college's huge library, Jean accidentally knocks a book off…

A: Initial speed of the book, u = 0 m/s Height of the shelf, h = 3.83 m Acceleration due to gravity, g…

Q: A roller-coaster goes over an 14 m tall hill then approaches a 25 m hill. What is the minimum…

A: Given data: Initial height (hi) = 14 m Final height (hf) = 25 m Required: The minimum velocity at…

Q: A car drives around a circular track. The track has a diameter of 100 m, and it takes 20 seconds for…

A: Givem, Diameter of circular track = 100 m Time taken = 20 s After completing one lap, initial and…

Q: The last unicorn runs off the top of a wall at a speed of 13 m/s. The wall is 7 meters high. How far…

A:

Q: m 6: A rock takes 3.1 s to hit the ground when it is thrown straight up from the cliff with an…

A: While solving the problem, we will take the upward direction as negative and downward as positive.…

Q: Bats use sound to detect obstacles in their path of flight. A bat inside a cave is moving towards a…

A: Speed of sound u=17 m/s, speed of bat v=340 m/s and distance of bat from the wall when sound is…

Q: runner and a cyclist compete in a race over a straight course 20 km long. The runner runs at a…

A:

Q: Walk along a long straight level path in the woods you go 30 m in 6.2 s, stop for 32 s, and then…

A: Given Data : The initial distance travelled in the woods is given as d1 = 30 m. The time taken to…

Q: A boy tosses a coin straight up to 2.2 m. Suppose the height when the coin leaves his hand is 1.3 m.…

A: Initial height of the coin in boy's hand = 1.3 m The height of the coin when it tosses = 2.2 m The…

Q: A 15 kg ball is thrown straight upward with a speed of 22 m/s. What is the maximum height the ball…

A: Given,Mass (M) = 15 kg Initial speed (u) = 22 m/s Also, we know Acceleration due to gravity(a) = g=…

Q: one from the deck of a bridge. cer. The speed of sound is 342 rels from the water surface up

A: When the stone hits the water surface, sound waves are generated and propagated in all possible…

Q: Vx v (m/s) 4 2 0 0 2 4 t (s)

A: Given thatInitial velocity at t= 0s is 4m/sFinal velocity at t = 2s is 2m/sFinal velocity at t=4s is…

Q: A bicyclist starts down a hill with an initial speed of 2.0 m/s. She moves down the hill with a…

A:

Q: You are testing a jet back pack on a dummy. You start it rising with an upward acceleration of 3…

A:

Q: A building is 60 m tall. A student wishes to drop a tomato from the top of the building onto the…

A: Given Height of the building is h=60 m Speed of the professor is v=1.7 m/s

Q: A small block has constant acceleration as it slides down a frictionless incline. The block is…

A:

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –