Q: The speed of a car increases from 20 m/s to 80 m/s during 3 seconds . The acceleration of the car…
A:
Q: A car starts from rest and accelerates uniformly to reach a speed of 21 m/s in 7.0 s. What was the…
A:
Q: a particle moves with a speed of 53 km / h after 3 hours its speed is 28 km / h. what is the…
A: Acceleration of particle= -8.33 km/h2 In m/s2 we can write Acceleration of particle= -6.43×10-4 m/s2
Q: The speed of an object is 4 m/s. How far, would it travel in 2 hours?
A: The expression for find distance is d=vt
Q: There were 2 boys standing on top of a bridge. The 1st boy drops a 1.5kg rock while the 2nd boy…
A: h=ut+0.5gt2
Q: A spaceship travels at a speed of 62 ft/ms convert its speed to km/s ( by mean milisecond)
A: Given data: Speed of the spaceship (v) = 62 ft/ms Required: Speed in km/s
Q: What is the impact speed when a car moving at 100km/hr bumps into rear of another car travelling in…
A: Impact speed is the speed just before collision, Since both the cars are moving ,the car moving with…
Q: How fast is a dropped object moving after it falls for 4 s?
A: Given data: Initial velocity (u) = 0 m/s Time (t) = 4 s Required: Final velocity (v)
Q: A child accidentally runs into the street in front of an approaching vehicle. The vehicle is…
A: solution of avove question given below step.
Q: A car is moving at a constant velocity of 21 m/s. If it is in motion for 30 minutes, how far does it…
A: we will use simple formula, Distance Travelled = Velocity × Time
Q: What is the velocity of a penguin that swims 90 meters through the water in 12 minutes?
A: Solution: Use the formula for velocity: V = distance/time Now,
Q: A gazelle runs off of a cliff with a velocity of 9 m/s. It hits the water 4.5 m away from the cliff.…
A:
Q: A bird is flying at 4 m/s that encounters a breeze blowing at 4 m/s in the same direction, what is…
A: Given- Speed of bird (VB) = 4 m/s, Velocity of blowing wind (VW) = 4 m/s
Q: A 1.2 ton car moving at 30 kilometers per hour bumps the rear of a 1.8 ton car moving in the same…
A: Given data: The mass of the first car, m1=1.2 ton. The mass of the second car, m2=1.8 ton. The…
Q: How fast was a plane flying if it traveled 800km in 50 min *
A: How fast was a plane flying if it traveled 800km in 50 min *
Q: A truck moving initially at24.6 m/S cover 70.0 m 2.40s. What is the truck final speed
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: If you could jump with an initial speed at 5 m/a, how many jumps would you need to reach the top of…
A:
Q: An object has a velocity given by i = (5.0 – 12j) m. How fast, and in what direction is the object…
A: Given velocity is v=5i^-12j^
Q: What is the impact speed when a car moving at 100km/h bumps into rear of another car travelling in…
A: the imapct speed is
Q: A car moving at 70 km/hr skids 42 meters with locked brakes. How far will a car traveling initially…
A: initial speed (u) = 70 kmhr = 70×518 ms= 19.44 msFinal speed (v) = 0 kmhr = 0×518 ms= 0msDistance…
Q: The cart moved a distance of 165 cm. How many meters did the cart move? (1 meter m 100 centimeters)
A: Given: The distance moved by cart, d=165 cm To convert the above distance into meters.
Q: would
A: The kinematics equation can be used to find the unknown parameters such as final velocity, distance…
Q: age speed of an arrow that takes 2.5 seconds to hit
A: Given- Distance x=125 mtime t=2.5 seconds
Q: A train is traveling 20 kilometers per hour. It is .5 kilometers behind you. You want to beat the…
A: The speed of train is 20 km/hr Distance between you and train is 5 km Distance between you and…
Q: If a rock of mass 6kg is dropped from a height, and has a velocity of 5 m/s when it hits the ground,…
A: The kinetic energy of the rock just before it hits the ground will be KE=12mv2=126kg5m/s2=75J
Q: A ball is dropped from the roof of a building 40 meters tall will hit the ground with a velocity of:
A: Given data The height of the building is given as s = 40 m. The initial velocity of the ball is…
Q: A car is moving at a speed of 6 meters/Second In 5 Seconds, he increases its speed to 16…
A: We know thatv=u+atWherev=final velocityu=initial velocitya=accelerationt=time taken
Q: If distance travelled by a train is 495 km in 4 hours 30 minutes, what is its speed?
A: Given Distance travelled by train (d) = 495 km Time taken (t) = 4 hours 30 minutes…
Q: A ball is dropped from a tall building. How far does it fall in 1.5 s
A:
Q: A ball rolls off the top of a table 1.2 m high and lands on the floor at a horizontal distance of 2…
A:
Q: An explosion causes debris from the ground to rise vertically with an initial velocity of 160 feet…
A: Given data: Initial velocity (v0) = 160 ft/s Height (h) = 300 ft Required: The speed at height 300…
Q: A 0.15 kg ball is dropped. How fast will it be moving after it has fallen 1.5 meters?
A: Given Data : The mass of the ball is given as m = 0.15kg. The distance travelled by the ball during…
Q: A dog runs 20 m [E] in 5 seconds. The dog's velocity is
A:
Q: body falls for a time
A:
Q: A motorcycle rider speeds off a 20-meter-high cliff. How fast must the driver leave the cliff to…
A: Given data: Height of the cliff y =- 20.0 m Height of the cliff from the ground x =100 m
Q: If the particle maintains the same speed, the distance it will cover after 100 seconds is?
A: Required : If the velocity is constant. The distance covered in 100 s.
Q: If you shoot a 10 kg cannonball straight it reaches a height of 600 meters, what was the velocity of…
A:
Q: From the very top of the new One World Trade Center Tower in New York City, an object would take…
A:
Q: A rock is thrown straight down from a cliff at a velocity of 3.7 m/s and hits the ground below after…
A: Given data: Initial velocity (Vi) = 3.7 m/s, downward Time (t) = 1.8 seconds Acceleration due to…
Q: An object is moving with a speed 83 ft/h find its speed in the units of m/s. use 1ft 0.304 m
A: Since, 1 hr=60 min=60 ×60 sec=3600 sec1 ft=0.304 m Hence, 83 fthr=83×0.304 m3600 sec=0.007 m/sec
Q: A bullet hits a target 2 cm below its aiming point f the gun is 30 m away from the target, what is
A: horizontal distance = R = 30 m vertical distance = y = 2 cm = 0.02 m
Q: A person riding their bicycle accelerates to a speed of 19.0 m/s over a distance of 298 meters. If…
A: Let the initial velocity of the person be u = 0, the final velocity of the person be v, the distance…
Q: A police jeep is following a car with a speed of 120m/s fires an object with speed of 80m/s. If car…
A:
Q: When the driver applies the brakes of a light truck traveling 10 km/h, it skids 3 m before stopping.…
A: GIVEN THAT FOR FIRST CASE , u =10Km/h⇒U=10×518=5018=2.78m/s , AND S=3 m FOR THE SECOND CASE u=…
Q: What is the speed at impact of a stone that is dropped from a height of 60 meters?
A: Given data: Height of the stone, h=60 m
Q: An object is traveling such that it has a mome (a) speed of the object in meters per secon m/s (b)…
A:
Q: If a car is intially traveling at 27 m/s and decelerates at a rate of 4.5 m/s2 how fast would it be…
A: Initial speed of the car, Acceleration of the car, Time interval, Applying the first equation…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- A 100-kg astronaut finds himself separated from his spaceship by 10 m and moving away from the spaceship at 0.1 m/s. To get back to the spaceship, he throws a 10-kg tool bag away from the spaceship at 5.0 m/s. How long will he take to return to the spaceship?A baseball catcher is performing a stunt for a television commercial. He will catch a baseball (mass 145 g) dropped from a height of 60.0 m above his glove. His glove stops the ball in 0.0100 s. What is the force exerted by his glove on the ball?A 90-kg football player jumps vertically into the air to catch a 0.50-kg football that is thrown essentially horizontally at him at 17 m/s. What is his horizontal speed after catching the ball?
- Check Your Understanding The soccer player stops after completing the play described above, but now notices that the ball is in position to be stolen. If she now experiences a force of 126 N attempts to steal the ball, which is 2.00 m away from her, how long will it take her to get to the ball?What average force is required to stop a 1800 kg car in 9.0 s if the car is traveling at 90 km/h ?•A baseball of mass m and initial speed v strikes a catcher’s mitt.If the mitt moves a distance ∆x as it brings the ball to rest, what isthe average force it exerts on the ball?
- As a protest against the umpire’s calls, a baseball pitcherthrows a ball straight up into the air at a speed of 20.0 m/s. Inthe process, he moves his hand through a distance of 1.50 m.If the ball has a mass of 0.150 kg, find the force he exerts onthe ball to give it this upward speed.During a rescue operation, a 5300-kg helicopterhovers above a fixed point. The helicopter blades send air downward with a speed of 62 m>s. What mass of air must pass throughthe blades every second to produce enough thrust for the helicopter to hover?A boy coasts down a hill on a sled, reaching a level surface atthe bottom with a speed of 7.00 m/s. If the coefficient of frictionbetween the sled’s runners and the snow is 0.050 0 andthe boy and sled together weigh 600. N, how far does the sledtravel on the level surface beforecoming to rest?
- Two ice skaters stand together and "push off" and travel directly away from each other, the boy with a velocity of v=0.450 m/s to the left. If the boy weighs 731 N and the girl weighs 463 N, what is the girls velocity (in m/s) after they push off?A 4.95 * 105 -kg rocket is accelerating straight up. It's engines produce 1.4 * 107 N of thrust, and air resistance is 4.55 * 106N.Considering the variables below:m =4.95*105 -kg f = 1.4 * 107 N fr=4.55*106 N What would be rockets acceleration, using a coordinates system where up is positive?In a severe head-on collision of an automobile, a deceleration of 60g’s or more (1 g = 32.2 ft/s2) often results in a fatality. What force, in lbf, acts on a child whose mass is 45lbwhen subjected to a deceleration of 55g’s?