Mr. Alim’s science class launched a toy rocket from ground level with an initial upward velocity of 60 ft per second. The height ‘h’ of the rocket in feet above the ground after ‘t’ seconds is modeled by the equation h=60t-16t^2. How long was the rocket in the air before it returned to the ground?
I am making some toy “name trains” and I need to know what tool will suit me best. I am cutting letters out of 1x (3/4) stock. Probably poplar or pine. What should I buy and any suggestions on brands or models?
Does any one know of a website where I can buy just the base of a RC toy car without the body and everything else? You know how at some website you can buy just the body of an RC car, well i need exactly the opposite of this. I need just the base of an RC car.
It also has to come with a controller obviously. And it has to be just the base of a RC Car.
Posted in RC Cars
Tagged base, body, Car, car question, everything, opposite, question, Radio, radio controlled car, RC Toy, Toy, toy car, website
I’ve got an RC boat coming in the mail this week.. just a cheap toy.. it will have (2) 380 motors (not sure what 380 means) I used to have one like this but my kids broke it.. I still have the battery… what will happen if I hook the batteries together then plug in the boat? will the motors run twice as fast? (or burn up.. ) or will it run twice as long? or is this just a bad idea?
every year there are couple of holiday toys all the parent want for their kids. For example couple of years ago it was remote control(RC) mini-car. Anything came for this year?
Posted in RC Cars
Tagged anything, christmas, christmas holiday, control, control rc, couple, Example, holiday, holiday toys, mini car, parent, remote control, Toy, year
How do I get into the hobby of toy/model rockets? What type of fuel do they use?
To model a spacecraft, a toy engine is securely fastened to a large puck, which can glide with negligible friction over a horizontal furface, taken as teh xy plane. The 7.0kg puck has a velocity of 2.00i m/s at one instant. Eight seconds later, its velocity is to be (5.00i + 7.00j)m/s. Assuming the rocket engine exerts a constant total horizontal force, find the components of the force. Find its magniutde.
Posted in Model Rockets
Tagged 00i, 00j, eight seconds, Engine, first and second law, Force, friction, horizontal, horizontal force, law, magintude, newtons, puck, rocket engine, spacecraft, Toy, velocity, xy plane
