A bullet of mass 0.04 kg moving with a speed of `90 ms^(-1)` enters a heavy wooden block and is stooped after a distance of 60 cm . What is the average resistive force exerted by the block on the bullet ?

Explanation

To solve the problem of finding the average resistive force exerted by the block on the bullet, we can follow these steps:

### Step 1: Identify the given values
- Mass of the bullet, \( m = 0.04 \, \text{kg} \)
- Initial speed of the bullet, \( u = 90 \, \text{m/s} \)
- Final speed of the bullet, \( v = 0 \, \text{m/s} \) (since it comes to a stop)
- Distance traveled in the block, \( s = 60 \, \text{cm} = 0.6 \, \text{m} \)

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