A student drops a pebble from the edge of a vertical cliff. The pebble hits the ground 4 s after it was dropped. What is the height o the cliff? A E. No answer B A. 20 m В. 40 m D. 80 m E) с. 60 m

Q: 2. Three ants, A, B, and C, travel along the paths shown in the Figure. All the ants start at 1 and…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 32 mi/h = m/s O a. 14.3 m/s O b. 71.59 m/s O C. 13.4 m/s O d. 41.3 m/s

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Q: . Convert the following vectors to component form. Include sketches a. E = 120 m/s at 41° W of N p.…

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Q: 22. The following data show the position of an object as a function of time. Position (cm) 0 3 11 26…

A:

Q: 6. If an object is dropped from the top of a ledge, what is the object's initial velocity?

A: Here, According to the question, the object is dropped. So, it’s basically free fall as no force is…

Q: A truck moves with a speed of 92 mi/h. how much is this speed in S.I. units? ( 1 mile = 1.609 km ) O…

A: Given data: Speed (v) = 92 mi/h 1 mi = 1.609 km Required: The speed in SI unit

Q: The speed of a Vehicle is 114 km/h. How much is this speed in S.I. units? a. 255.07 m/s O b. 410.40…

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Q: A truck moves with a speed of 68 mi/h. how much is this speed in S.I. units? ( 1 mile = 1.609 km )…

A: Given that:Speed of truck is s=68 mi/h1 mile=1.609 km

Q: A truck moves with a speed of 54 mi/h. how much is this speed in S.I. units? ( 1 mile = 1.609 km )

A: SI unit of speed is metre-per-second(m/s) Hence,  54mihr=54×(1.609×1000)60×60=24.135m/s

Q: 4. F = (x + y2)i + 5xyj + z²k А. ЗУк В. Зуј С. Зуi D. 3zj E. 3zk Г 22 VXF =

A:

Q: O chrome 4.) After six hours, a hiker descended 500 feet At what rate did the hiker climb (in feet…

A: Here is  per the question  After 6 hours the hiker descended 500 feet. Hence the hiker is climbing…

Q: The speed of a vehicle is 71 km / h . How much is this speed in S.I units ? choose a -150.86 m / s b…

A: Given that, Speed of vehicle = 71 km/h

Q: A ball dropped from a height of 30 cm, takes 0.6067 s to reach the ground. What is the acceleration…

A: As h=ut+1/2gt2u=0

Q: is used to lunch a spring A. ping loaded toy gun. 1og fplastic ball: The spring, which has a…

A:

Q: a. 0.050 km b. 305.0 cm 3.84 x 108 km d. None of these choices. e. 1.00281 kg

A: (1)All nonzero digits are significant.       For example ,       3.756 has four significant…

Q: Rewrite these vectors to fix the notation errors: d = 4.2 [W] km m v = 11.2–(E) m à = [down] 4.7 s2

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Q: . A ballast bag is dropped from a balloon that is 400 m above the ground and rising at 13 m/s. For…

A:

Q: 6. A bicyclist rides at 430 ft/min TE they ride for 45 min, how far have they gone? a. 0.105 ft O…

A: The velocity of the rider is v=430 ft/min The time taken for the ride is t=45 min

Q: 1. A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour? А. 3.6 В.…

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Q: Problem 1: Travelling with an initial speed of 70 km/hr, a car accelerates at 6000km/hr² along a…

A: initial velocity (u) = 70 km/hr final velocity (v) = 120 km/hr acceleration = 6000 km/hr2

Q: A student drops a pebble from the edge of a vertical cliff. The pebble hits the ground 4 s after it…

A:

Q: A volcano ejects a chunk of rock straight up at a velocity of vy = 30 m/s. Ignoring air resistance,…

A: Given data The velocity of the volcano Vy1=30 m/s Step 1 The motion of the rock from volcano and…

Q: 3. Aball is thrown vertically upward with a speed of 15.0 m/s from the edge of a 20.0 m tall…

A: Given data: The initial speed of the ball, vo=15.0 m/s Height of the building, h=20.0 m Time is…

Q: 2. A car with a speed of 61.2 kph [17.00 m/s] is travelling on a straight highway. The driver…

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Q: car traveling around a circular curve of radius 500 m and has an impact factor of 0.15. Compute the…

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Q: A car is traveling at a speed of 31 m/s. a. What is its speed in kilometers per hour? b. Is it…

A: Given data: Speed of the car is, v = 31 m/s Formula used: Conversion of speed from meter per second…

Q: An airplane accelerates from rest, down a runway at 3.4 m/s? for 26.1 s until is finally lifts off…

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Q: How many significant figures does each of the following numbers have?a. 6.21                 b.…

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Q: stone is thrown outward, at an angle of 30° with the horizontal into the river from a cliff, that is…

A: We know that We have given that a  stone is thrown outward, at an angle of 30° with the horizontal…

Q: Which of the following statement is incorrect? A. î x j = k B.k.j = { C.ĵ.ĵ= 1 D. K x K = 0

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Q: VA spelunlker drops astone off of aclıftinadarn cave at the instmat he starts his stop watch. He…

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Q: Select the correct answer. A feather is dropped onto the surface of the moon. How far will the…

A: Given Data :feather is dropped hence initial speed of feather is zero u = 0  mstime to reach the…

Q: A stone is dropped from a high cliff vertically. After 5.78 seconds, it hits the ground. How high is…

A: Given: Time (t) = 5.78 s  Gravity (g) = 9.8 m/s2

Q: A rock is dropped from the top of a building. Rock starts from rest and it takes 7 seconds to reach…

A: Given: The initial speed of the rock is zero.             The time taken by the rock to reach the…

Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.