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Q. A car crashes into a wall at 25 m/s and is brought to a rest in 0.1 s. Show that the average force exerted on a 75-kg test dummy by the seat belt is more than 18,000 N.
Q. What is your displacement after running 2.5 {rm km} on Strawberry Fields, 1.4 {rm km} on Penny Lane, and 4.2 {rm km} on Abbey Road?
Conclude the magnitude and directional angle
A soccer ball of diameter 30 cm rolls without slipping at a linear speed of 2.7 m/s. Through how various revolutions has the soccer ball turned as it moves a linear distance of 16 m.
Establish the average net force
What is its angular displacement in this time.
A submarine is 304 m horizontally out from the shore and 126 m beneath the surface of the water. A laser beam is sent from the sub so that it strikes the surface of the water at a point 232 m from the shore. If beam just strikes the top of a building..
A woman is running at a constant velocity of 5 m/s in an attempt to catch a stopped bus 11m ahead of her. Though, it pulls away from her with a constant acceleration of 1 m/s2. How much time does it take her to reach the bus if she keeps running a..
Cold fusion theory.
How far must the spring be compressed. A small remote-control car with a mass of 1.62 moves at a constant speed of = 12.0 in a vertical circle inside a hollow metal cylinder that has a radius of 5.
A force of 315 N is applied horizontally to a wooden crate in order to displac eit 35.0 m accorss a level surface at a constant velocity. As a result of this work the crate's internal energy is increased by an amount equal to 14 percent of the cra..
A 20.00 kg wood ball hangs from the 1.10 long wires. The maximum tension the wire can withstand without breaking is 600 N. A 0.710 kg projectile travelling horizontally hits and embeds itself in the wood ball. What is the largest speed this projectil..
A boy whirls a stone using an r-m long string in a horizontal circle h m above the ground. The string broke, and the stone flies off horizontally and strike the ground x m away.The velocity with which the stone flies off the circle is? The centrip..
A plate carries a charge of -3.7 C, while a rod carries a charge of +1.9 C. How many electrons should be transferred from the plate to the rod, so that both objects have the same charge.
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