How do you find the average resistive force?

How do you find the average resistive force?

The average resistance force is the change in momentum divided by the time required to stop the bullet. The distance covered under constant acceleration is 1/2 a* t^2. The average acceleration is the change in velocity divided by the time.

How do you find the resistive force of a bullet?

v2=u2+2as, where v is final velocity, u is initial velocity, a is acceleration and s is the distance travelled. F=ma, where F is force, m is the mass and a is the acceleration. (iv) The resistive force on the bullet is: F=0.05×−250000=−12500N .

What is the average force necessary to stop a bullet of mass 10 g moving with a speed of 200 ms 1 as it penetrates into the wood log kept at a distance of 20 cm?

Answer: The average force necessary to stop a bullet is 5208 N.

What is the average force exerted by the block on the bullet?

The force is negative since it is a resistive force (it tries to decelerate the bullet opposing its motion). Thus, the magnitude of the resistive force exerted by the block on the bullet is 2700N.

Is gravity a resistive force?

It is difficult to imagine a real situation in which the one and only force is a resistive force proportional to the speed. A body falling through the air won’t do, because, in addition to the resistive force, there is the acceleration due to gravity.

What is the average force necessary to stop a hammer?

Average force is 2p Newton.

How much force does it take to stop a bullet?

About 250 feet per second (76 m/s) velocity is required for an expanded hollow point bullet to puncture skin 50% of the time.

What is the symbol of retardation?

Answer:There is no symbol for retardation. It is written as ‘retardation’ only.

What is the average resistive force of a wooden block?

A bullet of mass 0.04 kg moving with a speed of 90 m/s enters a wooden block and is stopped after a distance of 60cm. What is the average resistive force exerted by the block on the bullet? Ok, so here’s what I did. Info known: m = 0.04 kg ; u = 90; s = 60;

What’s the average resistive force of a bullet?

Closed 7 years ago. A bullet of mass 0.04 kg moving with a speed of 90 m/s enters a wooden block and is stopped after a distance of 60cm. What is the average resistive force exerted by the block on the bullet?

How to calculate the average resistive force of an object?

Calculating the force: F = ma = m * v/t = 0.04 * 90/t = 3.6/t = 3.6 / 0.005 [Since t = 0.005] = 720 Newtons. Thus, the average resistive force is 720 N. My friend who had a brief second to look at what I did said it was completely wrong and that my logic is faulty.

How is a wooden block hit by a bullet?

Task number: 511 A wooden block with mass M= 3 kg is lying on a horizontal table. It is hit by a bullet with mass m= 5 g which moves horizontally. The bullet remains in the block after colliding with it. The block moves on the table a distance d= 25 cm. The coefficient of kinetic friction μk= 0.2.