152 Answered Questions for the topic Speed

Speed

19d

Math constant speed, average speed

Cars A and B leave the same place and travel in the same direction along a straight road. Car A travels at 60 km/h and car B travels at 72 km/h. After how long will they be at 8km apart?

12/03/20

This is a trig question that is too long to put in the title. See description

A small pebble stuck on the tread of a car’s tire is travelling at a linearspeed of 35 miles per hour. If the radius of the tire were 1 inch greater and itsangular velocity were the same, the... more

11/24/20

A particle moves along a straight line. For 0 ≤ t ≤ 5, the position of the particle is given by – . s(t)=3t+4t^2-t^3.

A particle moves along a straight line. For 0 ≤ t ≤ 5, the position of the particle is given by – .s(t)=3t+4t^2-t^3. a) What is the average velocity of the particle over the interval 0 ≤ t ≤... more
Speed Radius

09/10/20

the radius around the circle?

an object travels around a circle with a constant speed. Two measurements are taken: it rotates 21 revolutions in 7 seconds. It travels 40 meters in 5 seconds. find the radius of the circle

05/06/20

Algebra homework help

Problem: ​A rowing team practices rowing 2 miles upstream and 2 miles downstream. The team can row downstream 25% faster than they can row upstream.a. )Write and simplify an expression for the... more

04/15/20

HELP NEEDED PLEASE

 One jet flies east at 880 km/h and another jet is flying north at 880 km/h. Do they have the same velocity? Do they have the same speed? 

04/15/20

HEEELLPP I DON'T UNDERSTAND

An ant is crawling on your ruler. He is on the 6 cm. mark and he crawls back to the 2 cm mark. He does this in 2 seconds. What is the distance he crawls? What is his speed? What is his... more
Speed

11/10/19

Suppose Yas runs along a radius of 10m in 10sec find average speed

10/04/19

Time Distance Question

New York and Los Angeles are 3,000 miles apart. If a man drives from New York to Los Angeles at 80 mph and another man drives from Los Angeles to New York at 90mph, where will they meet?

How to answer questions involving pulleys?

A small ball,P, of mass 0.8kg is held at rest on a smooth horizontal table and is attached to one end of a thin rope. The rope passes over a pulley that is fixed at the edge of the table. The other... more
Speed Algebra 2

05/10/19

Solving speed word problem

A plane flew for 576 km directly into a strong wind and then flew back with the same wind. If the total flying time was 5 hours and the planes airspeed was 250 km/h what was the speed of the wind?

02/08/19

SPEED,DISTANCE AND TIME

Overall, the bus covered 12 kilometres in 35 minutes. What is this speed in kilometres per hour?

12/20/18

Distance, displacement speed and velocity

A student went for a run. She ran for exactly 22 minutes at an average speed of 4.0m/s calculate the distance she ran in km and state the equation that links distance travelled, average speed time.
Speed Time Distance

11/17/18

I need help with HW

Isabelle is trying to predict the time required to ride her bike to the nearby beach. She knows that the distance is 45 km and, from other trips, that she can usually average about 20 km/h. Predict... more

10/28/18

Velocity, How far does the object move?

An object moving on a number line as position s given by s=t^2 (where t is measured in seconds and s in feet). At time t=2, its velocity is 4 feet per second, as you can check .How far does it move... more

10/01/18

Physics Question:

In a 3 km race, a runner completes the first km in 6 minutes, the second km in 7 minutes,  and the final km in 7 minutes. The average speed of the runner for the race is approximately what?A) 6.7... more

10/01/18

A deer moves East through the Forest at 4 m/s for 10 seconds. What is the deer's displacement?

The choices A) 40 mB) 4 m/s East C) 40 m EastD) 40 m/s

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