10. A stone is thrown vertically with a velocity of 14 m/s [down] from a bridge. How long will the stone take to reach the water 21 m below? a. 0.4 s b. 1.1 s c. 1.6 s d. 2.2 s e. none of the above

Q: 14. A dog travels from point A to point B in 4.0s. If the dog was displaced 12 m (E) , what was its…

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Q: A box is dropped from a hot air balloon that is 300 ft above the ground and rising at 13 ft/s.…

A: a)Here ,we have We  know that according to the kinematic equation, the final velocity is given as…

Q: find the average velocity between 1s and 6.5 s. possible answers: a.-0.73 m/s b.+1.4 m/s c.+0.73 m/s…

A: Initial time,  Final time,  Position at 1s,  Position at 6.5s,

Q: i. A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 17 m…

A: Distance travelled by the ball = 17m Total time upto hear the sound = 3.20s  Speed of the sound =…

Q: Given these two velocities, C = (4î +2ĵ -2k̂) m/s and E= (5î -4ĵ +5k̂), find the magnitude of the…

A: Given C = (4î +2ĵ -2k̂) m/s  E= (5î -4ĵ +5k̂)m/s

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

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Q: A car accelerates uniformly from zero to 12 m/s^2 in 8 seconds staring from rest. During the next 4…

A: initial velocity of the car = 0 msacceleration for first 8 seconds = 12 ms2acceleration for next 4…

Q: ball is thrown vertically from the ground with a velocity of 30 m/s.  a. What time is required for…

A: We know that the first equation of motion is given as  v=u+at where v is the final velocity  u is…

Q: A ball is thrown vertically upward with an initial velocity of 35 m/sec, How for above the ground…

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Q: . A car approaches a junction at 20 m/s. Traffic light at the junction suddenly turned red when the…

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Q: How long does it take a car travelling at 22 m/s [N] to stop if it accelerates at 3.8 m/s² [S]? a.…

A: Hi. as you have posted multiple questions and have not specified which question needs to be solved,…

Q: A car drives 15 m/s off a cliff that is 50m high. 1. How long before the car lands? 2. How far from…

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Q: 4. A car has a velocity of 20 m/s after 1 min. The car increases its velocity uniformly for 30 s.…

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Q: A car starting from rest has a constant acceleration of 4 meters per second per second. How fast…

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Q: A stone is thrown upward at 9.8 m/s. At the end of 1.0s, its acceleration is; a. zero b.…

A: Equation of final velocity of a body thrown upwards is given by v = u-gt, where u = initial velocity…

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: The object is thrown straight up at 3m/s from 1 m above the ground. Which of the following best…

A: Given data:  Initial velocity (u) = 3 m/s, straight upward Initial height (h) = 1 m Required: The…

Q: 3. A car decelerates by constantly reducing 3 m/s per second of its velocity in a span of 10…

A: Given  Deacceleration a=-3m/s2 Time t=10sec Average velocity Vavg=30ft/s=30×.305=9.15m/s

Q: 3. A jet plane has a takeoff speed of Vtakeoff = 60 m/s and can move along the runway at an average…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: m in 0.5 Hour. What was her verage speed?

A: GivenDistance travelled by car =10 kmTime taken by car=0.5 hour

Q: The motion of a particle is given by the equation s = 3t4 -+ 4t? where s is in foot and t is in…

A: V= speed = differentiation of displacement (s)  i. e.,  V = ds/dt. Acceleration a = dv/dt…

Q: 2.4

A:

Q: A giant boulder is traveling down a hill at a rate of 20 m/s. You are located 1 km away from the…

A: Given : Speed (v) = 20 m/s Distance (d) = 1 km = 1000 m

Q: You are riding a donkey that gets scared by an earthquake. If the donkey was originally traveling at…

A: Given: The initial velocity of the donkey is 12.5 m/s. The final velocity of the donkey is 13.7 m/s.…

Q: 4. What is the horizontal acceleration component of an object in projectile motion? A. 9.8 m/s^2…

A: Given are the multiple-choice questions depending on vector and scalar quantities.

Q: 6. Jose walked 150m to the East for 5 minutes and 14 seconds, then walked 500m for 30 minutes 32…

A: Given data--- Distance  Time  150 m 5 min 14 sec 500 m 30 min 32 sec We have to…

Q: 1.A car travels in the north expressway with a constant velocity of 80kmhr for 10mins. what is the…

A: Given that:-Car velocity, v=80 km/hrand, time, t=10 min.=600 secDirection of movement is North.

Q: 2. An object falling vertically downwards and feeling a force of air resistance has a speed given…

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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: A water bottle rocket is blasted up with an initial velocity of 40. m/s. Assume no air resistance.…

A: Given data:  A vertical upward projectile motion  Initial velocity (u) = 40 m/s Air resistance is…

Q: A small block is projected up an incline (=.3) with initial speed of vo= 12 m/s. If the angle = 25°,…

A:

Q: A car accelerates uniformly from zero to 13 m/s* in 8 seconds staring from rest. During the next 4…

A: Initial velocity = 0 msacceleration for first 8 seconds = 13 ms2acceleration for next 4 seconds = -…

Q: 1. A bicyclist pedals at a speed of 5.0 m/s. How far does he travel in 2000 seconds?

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Q: A toy car is moving at 13 cm/s when it begins accelerating at 1.4 cm/s2. If the acceleration is…

A: Write the given values with the suitable variables. u=13 cm/sa=1.4 cm/s2s=27 m Here, u is the…

Q: An object is thrown upward with an initial velocity of 20m/s. How high does it rise?

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Q: A car pulls away from a stop sign with a constant acceleration. After traveling 10 m, its speed is 5…

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Q: An object moves along the ry-plane. At some instant, its velocity and acceleration are J = – (3 m/s)…

A: for straight line motion, the velocity and acceleration are in same (or opposite) direction.

Q: A car travels 105 m with constant deceleration of 2.4 m/s2 in 3 seconds. What is the initial…

A: Given data: Here, S represents the distance, t represents the time, and a represents the…

Q: ement. Figure below shows the displacement Vs. time graph of two particles. Which of the statements…

A: Slope of a displacement time graph gives us velocity. Here for both the particle the graphs are…

Q: which of the following speeds is the fastest? a. 4.2 ' 10^-2 km/s b. 1.4 ' 10^2 km/s c. 4.0 '…

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Q: Instantaneous velocity is negative when the object moves toward the left direction. 2.…

A: 1) Instantaneous velocity is negative when the object moves toward the left direction ----true .…

Q: 2. A football is kicked upward with a speed of 35 m/s from the top of a 70m building. Find: a. The…

A:

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.