An object is dropped from 151 m. How long takes the object to reach the ground? Ignore the air resistance O 5.5 s O 1.5 s O 6.5 s O 9.8 s

Q: 6. A rock is dropped from the top of an 80-meter tower. Air resistance is negligible. The magnitude…

A: Please note : As per answering guidelines I can answer the first question only. Since, this is not a…

Q: A stone is thrown straight upward with a speed of 20 m/s. It is caught on s way down at a point 5.0…

A:

Q: What is the velocity of a ball thrown with an initial speed of 28 m/s, 45° above the ground at t =…

A:

Q: A package is dropped from a helicopter that is moving upward at 15 m/s. If it takes 8 seconds before…

A: Given  Time take to reach ground,T = 8 second  Acceleration due to gravity,g = 9.8m/s2 (downward)…

Q: A ball is thrown from the top of a building with an initial velocity of 20:0 m=s straight upward ,at…

A: Initial upwards velocity (u) = 20 msInitial height (h) = 50 m

Q: A stone is thrown straight upward with a speed of 25 m/s. It is caught on its way down at a point 5…

A: The vertical displacement of stone is   y=y_0+v_0t-(1/2)gt^2  5=25t-(1/2)(9.80)t^2 5=25t-4.90t^2 On…

Q: A ball is pushed downhill with an initial velocity of 9.8 m/s. The ball rolls down a hill with a…

A:

Q: car with an initial velocity of 8.00 m/s accelerates at a constant rate of 3.00 m/s?un eaches a…

A: Given values:- Initial velocity of car,(u)=8 m/sec ----(1) Acceleration of car,(a)=3 m/sec2 ----(2)…

Q: A tennis ball is shot straight upward from the ground with an initial velocity of +35.0 m/s. How…

A:

Q: If you toss a ball upward with an initial speed v = 2m/s, it reaches a max height h without air…

A: Given data:  Original initial velocity (v) = 2 m/s, vertically upward  Maximum height = h New…

Q: A stone is thrown straight upward with a speed of 20 m/s. It is caught on its way down at a point…

A: Given value--- initial speed = 20 m/s. height = 5m. We have to find--- time ?

Q: During a walk on the Moon, an astronaut accidentally drops his camera over a cliff. It leaves his…

A: Given : t = 2 s voy = 0 m/s vy = -5.70 m/s (Negative because of downward direction) T = 8 s

Q: A ball is thrown up in the air, reaching a height of 3.00 m. Determine its initial speed. O 58.9 m/s…

A:

Q: A motorcycle with a velocity of 7.0 m/s is accelerated uniformly for 4.0 s on a straight road at the…

A: According to question we need to find the mass of object. and final velocity of motorcycle.

Q: A test rocket is fired straight up from rest with a net acceleration of 20.0 m/s2. After 4.00…

A: Initial velocity of test rocket,(u)=0 m/sec ----(1) [Initially at rest] Net acceleration of the test…

Q: A car travels 70.0 km North and then travels 50.0 km east in 2.0 hour. What is the car's average…

A: Given, Car travels in north direction 70.0 km and in east direction 50.0 km. Time taken is 2.0 hour.…

Q: A rock is thrown directly upward from the edge of the roof of a building that is 66.2 meters tall.…

A: Given Part -1: Height of building = 66.2 m Time taken to hits the ground = 4.00 s We have to…

Q: A test rocket is fired straight up from rest with a net acceleration of 20.0 m/s2. After 4.00…

A: The elevation with the motor ON s1=ut+12at2=0+1220.0 ms24.00 s2=160 m Final speed of the motor…

Q: A stone vertically thrown downward with an initial speed of 12.0 m/s from the roof of a building,…

A: Given:-              Initial speed = 12.0 m/s                 height = 30.0 m

Q: A package is dropped from a helicopter moving upward at 15 m/s. If it takes 16.0 s before the…

A:

Q: A ball thrown vertically up is caught by the thrower after 2s. The initial velocity with which it…

A: Ball is thrown vertically and then caught after 2 s. So total time of flight is 2 s. As ball goes…

Q: A plane is flying at 200 m/s east. A flight attendant runs toward the front of the plane at 1m/s.…

A: Write the given values with the suitable variables. vpg=200 m/svap=-1 m/s Here, vp and va are the…

Q: Abaseball is thrown vertically upward and reaches a maximum height of 50.0 m. What is the velocity…

A:

Q: An object is thrown upwards from the ground level at a speed of 58m/s. It travels upwards to the…

A: Recall Vf2=Vi2-2gh

Q: During a walk on the Moon, an astronaut accidentally drops his camera over a cliff. It leaves his…

A: Given: The initial speed of the camera when it leaves the astronaut's hands: u = 0 m/s. The…

Q: average speed in km/hr

A:

Q: A jet must reach a speed of 75m/s for takeoff. How long is the runway if the acceleration is 15…

A: We have givenFinal speed of Jet (v)=75 m/sAcceleration (a)= 15 m/s2

Q: A ball is thrown from the top of a building with an initial velocity of 20:0 m3s straight upward ,at…

A: Initial speed = u = 20 m/s (upward) Height = h = -50 m (downward) acceleration = a= -9.81 m/s2 Apply…

Q: How far does a car travel in 6.0 s if its initial velocity is 2.0 m/s and its acceleration is 2.0…

A: Given data:  Initial velocity (v0) = 2.0 m/s Acceleration (a) = 2.0 m/s2, forward  Time (t) = 6.0 s…

Q: A roller-coaster goes over a 12 m tall hill then approaches a 30 m hill. What is the minimum…

A:

Q: Ben threw a ball straight upwards with initial velocity of 14.5 meter per second. Disregarding air…

A: Given data :- initial velocity u = 14.5 m/s air resistance = 0

Q: A hammer is thrown vertically upward to the top of a roof 16 m high. What minimum initial velocity…

A: Acceleration due to gravity, g = 9.81 m/s2 Height of the building, h = 16 m Final velocity, v = 0…

Q: A ball is thrown straight up with a speed of 35 m/s. How long does it take to return to its starting…

A: The expression for the 1st equation of motion is used to calculate the time taken by the ball to…

Q: A brick was dropped from rest from a height of 91.4 m. How long does it take the brick to reach the…

A:

Q: A car travels from A to B at an average speed of 80 kph and back to A without loss of time at an…

A: Given: The car travels from A to B at 80 kph. The car travels from B to A at 100 kph.

Q: A jet must reach a speed of 50 m/s for takeoff. How long is the runway if the acceleration is 22…

A:

Q: A ball is thrown straight up with a speed of 36 m/s. How long does it take to return to its starting…

A: v=u+-gtt=u-vg=36 m/s-0 m/s9.8 m/s2=3.67

Q: "If it takes 50 m to stop a car initially moving at 25 m/s, what distance is required to stop a car…

A:

Q: A car travelling at a speed of 100km/h is stopped in 3 minutes. The acceleration of the car is O a.…

A:

Q: 32. A motorcycle moving at a constant velocity suddenly accelerates at a rate of 4 m/s? to a speed…

A: From the question it is given that  Acceleration of motorcycle: a = 4 m/s2  Final speed of…

Q: A car moving with an initial velocity of 25 m/s north has a constant acceleration of 3 m/s² south.…

A:

Q: An object is launched with a speed of 14 m/s off the roof of a building that is 80 m high so that it…

A: vi=14 m/sy=80 m

Q: A car starts from rest and accelerates at a steady 0.6 m/s². How far does it travel in the first…

A:

Q: An object is thrown vertically upward with a speed of 12 m/s. How much time passes before it reaches…

A:

Q: A train has an initial velocity of 4 m/s. It begins to accelerate at 1.5 m/s2 in 30 seconds. What…

A: Given: Initial speed u=4 m/s Acceleration of train a=1.5 m/s2 Time t=30 s

Q: During a walk on the Moon, an astronaut accidentally drops his camera over a cliff. It leaves his…

A:

Q: A truck covers 80 m in 16 s while uniformly slowing down to come to rest. What is the initial…

A: Given,  distance ,s = 80m Time, t = 16s Truck is slowing down ,so acceleration is negative. Let the…

Q: A ball is thrown from the top of a building with an initial velocity of 20:0 m=s straight upward ,at…

A:

Q: A player kicks a soccer ball straight up into the air. The ball takes 2.0 s to reach its highest…

A: Scenario - Soccer player kicks ball straight in air with certain velocity.  Given : Time taken to go…

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 –