2. A ball, which has a mass of 24.0 grams, is dropped from a height of 94.0 cm. How long will it take for this ball to reach the floor?

Q: A rock is thrown downward into a well that is 8.76 m deep. If the splash is heard 1.02 seconds…

A: Let the initial velocity of rock = u depth of well (d) = 8.76 m time taken for the splash to be…

Q: The speed of sound in air is 340 m/s. What is the speed of a supersonic plane at twice the speed of…

A:

Q: A car traveling at 35 m/s suddenly runs out of gas while driving up a 7° incline. How long will it…

A:

Q: While standing at the edge of the roof of a building, a man throws a stone upward with an initial…

A: From the kinematic expression the value for the time will be,

Q: A hare and a tortoise compete in a race over a straight course 1.55 km long. The tortoise crawls at…

A: a)The required distance that the tortoise is far from the finish line is,

Q: An object is thrown upward with an initial velocity of 52.9 m/s. Find the time (in units of seconds)…

A: Given  Initial velocity v=52.9m/s Acceleration due to gravity g=9.8 m/s2

Q: A man throws a ball vertically upward from the window of a building with a speed of 15 m/s.

A: The expression from kinematics,

Q: After being released form the ground, a golf ball reached its maximum height in 14.37 s. And 6.96 s…

A: please upvote:)

Q: 2. Convert the following units into a desired unit with correct significant figure a. 10 m/s? to…

A: NOTE- As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost…

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…

A:

Q: what initial speed must you need to jump off the ground vertically and rise to a height of 0.9m?

A: SOlution: Given that h = 0.9 m to determine the initial speed

Q: What is the p of a man of mass 75 kg when he walks with a uniform velocity of 2 m/s.

A: Given data:  Mass (m) = 75 kg Uniform velocity (v) = 2 m/s Required: Momentum (P)

Q: What maximum height, in meters, will be reached by a stone thrown vertically straight upward if it…

A: The third equation of motion is  v2 = u2 - 2 g h  where, u is the initial velocity, v is the final…

Q: A flower pot is thrown down at a 4.00m/s and hits the ground in 8.00s. From what height was it…

A: initial speed (u)=4 m/s  time to reach ground(t)=8 sec  acceleration due to gravity (g) =9.8m/s2 let…

Q: 3. A 13kg cannon ball was dropped from a height of 180 ft above the ground. If there is no air…

A: Initially ball is in rest (vi) = 0 Final distance (yi) = 0 Conservation law becomes   (1/2)mvf2 =…

Q: 2. A small plane flying at 180 kph at an altitude of 240m, is to drop an inflatable raft to flood…

A:

Q: A jogger runs 10 km in 45 minutes, rests for 10 minutes, and then runs another 8 km in 1 hour. The…

A: Given Data :               Distance traveled by jogger in first 45 minutes (d1) = 10 km = 10×103 m…

Q: 6. A car moving at 65 mi/h South then 50 mi/h east.

A:

Q: A 86.1 kg stone is dropped from the top of a building. It takes 9.1 s for the stone to hit the…

A: Given data: Mass m = 86.1 kg time t = 9.1 s

Q: If an airplane needs to reach a speed of 36.5 m/s in order to takeoff, and the plane can accelerate…

A: Given data:  Initial velocity (u) = 0 m/s Final velocity (v) = 36.5 m/s Acceleration (a) = 2.30 m/s2…

Q: 1. What is the speed of a bus that travels a distance of 400 km in 8.0 h? 2. A turtle moves a…

A: 1) speed = d/t = 400/8 = 50km/h  2) speed = d/t = 39.4/7.3 = 5.4 cm/s  3) s = vt = 25×0.4 = 10 m

Q: 1. The rate of change of the velocity of an object is:

A: (Note: You have posted many questions which are not interlinked, as per the company policy, only the…

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

A: Given t = 7 second G = 9.8 m/s2  We know that the the expression for time of flight is t=2hG

Q: A race-car driver steps on the gas, changing his speed from 10 m/s to 30 m/s in 4 seconds. The…

A: Given values: Initial velocity, vinitial= 10 m/s Final speed, vfinal= 30 m/s Duration, ∆t=4 s

Q: 10. A stone is thrown vertically with a velocity of 14 m/s [down] from a bridge. How long will the…

A: Given data The velocity of the stone is given as v = 14 m/s. The height of the water below the…

Q: A car traveling 60 km/hkm/h slows down at a constant 0.50 m/s2m/s2 just by "letting up on the gas."…

A:

Q: 135. Which term identifies a scalar quantity? (1) acceleration (2) momentum (3) speed (4)…

A: Scalar quantity is the which has magnitude only. For a vector quantity, it has a magnitude as well…

Q: A motorist drives 100 km from one city to another in 2.80 h but makes the return trip in only 2.00…

A: The average speed of the total trip can be expressed as,

Q: Convert 2 km/h to m/s. How many ft/s is this? Evaluate each of the following and express with SI…

A:

Q: A tennis ball is thrown straight upward with an initial speed of 15 m/s. What is the speed of the…

A:

Q: 1. What is the speed of a bus that travels a distance of 400 km in 8.0 h? 2. A turtle moves a…

A: Given  For the bus the covered Distance ,D1 = 400 km  And Time ,T1 = 8.0 hr    For the turtle, the…

Q: A wet bar of soap slides down a ramp 7.6 mm long inclined at 8.0∘   How long does it take to reach…

A:

Q: 20- If it is an equation for a particular system, as follows: What are the equations of motion for…

A:

Q: A car is accelerating at 12m/s^2. Find its acceleration in km/hr^2

A: We know that, 1km = 1000m and 1hr = 3600s

Q: 1.) A plane flies the distance between two cities in 2 hour and 45 minutes with a velocity of…

A: Velocity of plane 1 is v1 = 800 km/hr  Velocity of plane 1 is v2 = 950 km/hr  Distance between two…

Q: A bird flew 650 km from Manila to Pampanga with an average speed of 28.0 m/s.  How long, in hours,…

A: Given: The distance traveled by the bird is 650 km. The average speed of the bird is 28 m/s.

Q: 2. A ball is dropped from rest down a building, and in 2 s another ball is dropped from rest. Find…

A: At 1 sec later the first ball will travel (2+1)=3 sec where second ball will travel only 1 sec. we…

Q: An object is moving in positive x direction, slowing at a rate of 4.16m/s^2. After moving a distance…

A:

Q: 2 A stopwatch is used to time an athlete running 100 m. the watch to zero before using it to time…

A: Given, Both the athlete running for the 100 m

Q: Over a distance of 280 meters, an automobile going initially at +6.0 m/s accelerates evenly at +0.10…

A:

Q: 10. The displacement of the object between t=0 and t= 4 s is: (A) 22 m (B) 28 m (C) 40 m (D) 42 m…

A:

Q: 3. A student goes to school at the rate of 7 km/hr and reaches 10 minutes late 10 minutes cariy.…

A:

Q: The driver of a car traveling at 42 ft/sec suddenly applies the brakes. The position of the car is…

A: Initial velocity "u"= 42ft/sec . distance after t time "s"= 42t-3t²  To find value of t ???

Q: A stone is dropped from the deck of a bridge. The sound of the splash reached the deck 3 secs later.…

A: Speed of sound in air = 342 m/sTime taken to hear the splash = 3 secondsLet the height of bridge = h…

Q: A 3kg ball is thrown straight into the air at 8m/s. How high does it travel? Use g=9.8m/s2

A:

Q: A car has a velocity of 5.61 m/s. The driver hits the gas and accelerates the car at 3.30 m/s2. How…

A: Given data: Initial velocity (Vi) = 5.61 m/s Acceleration (a) = 3.30 m/s2  Time (t) = 5.15 s…

Q: An object is dropped at rest from the roof of a building of height h. Neglect air resistance. In…

A: The remaining height of the building is, s=h-h5=4h5 When the object is dropped from the rest, the…

Q: A car accelerates from 25 mi/hr to 55 mi/hr in 4.5s. Find its acceleration in ft/s:

A: Given data:  Initial velocity (Vi) = 25 mi/hr Final velocity (Vf) = 55 mi/hr Time (t) = 4.5 s…

Q: A hippopotamus accelerates at 0.678 m/s^2 until it reaches a speed of 8.33 m/s. If the hippopotamus…

A: Acceleration of hippopotamus: a = 0.678 m/s2 Final speed of hippopotamus: v = 8.33 m/s Distance…