Collisions and Explosions

A 0.20 kg ball is thrown at batter at a speed of 140 km/h. What is the momentum of the ball?

• 28 kg m/s

• 7.8 kg m/s

• 150 kg m/s

• 150 Joules

Tags

NGSS.HS-PS2-2

The momentum of a 0.20 kg ball going towards a batter is 8.2 kg m/s. The hitter bunts the ball with his 1.4 kg bat. If the bat travels at in the direction of the ball after the bunt at 3.4 m/s, what is the momentum of the bat after the collision?

• 8.1 joules

• -8.2 kg m/s

• 1.3 kg m/s

• -4.8 kg m/s

The momentum of a 0.20 kg ball going towards a batter is 8.2 kg m/s. The hitter bunts the ball with his 1.4 kg bat. If the bat travels at in the direction of the ball after the bunt at 10.25 m/s, what is the total momentum of the system after the collision?

• 8.2 kg m/s

• 20.4 kg m/s

• -6.15 kg m/s

• 14.35 kg m/s

A 2 250 kg Tesla going 15.0 m/s collides with a parked 3 190 kg Dodge Ram. During the collision they stick together as they deform. The two vehicles then travel at 6.20 m/s.

What is the momentum of the Tesla before the crash?

• 14,000 kg m/s

• 19,800 kg m/s

• 33,800 kg m/s

• 47,900 kg m/s

A 2 250 kg Tesla going 15.0 m/s collides with a parked 3 190 kg Dodge Ram. During the collision they stick together as they deform. The two vehicles then travel at 6.20 m/s.

What is the momentum of the Dodge Ram before the crash?

• 0 kg m/s

• 14,000 kg m/s

• 19,800 kg m/s

• 33,800 kg m/s

A 2 250 kg Tesla going 15.0 m/s collides with a parked 3 190 kg Dodge Ram. During the collision they stick together as they deform. The two vehicles then travel at 6.20 m/s.

What is the momentum of the Dodge Ram after the crash?

• 0 kg m/s

• 14,000 kg m/s

• 19,800 kg m/s

• 33,800 kg m/s

A 2 250 kg Tesla going 15.0 m/s collides with a parked 3 190 kg Dodge Ram. During the collision they stick together as they deform. The two vehicles then travel at 6.20 m/s.

What is the momentum of the Tesla after the crash?

• 0 kg m/s

• 14,000 kg m/s

• 19,800 kg m/s

• 33,800 kg m/s

A 2 250 kg Tesla going 15.0 m/s collides with a parked 3 190 kg Dodge Ram. During the collision they stick together as they deform. The two vehicles then travel at 6.20 m/s.

What is the momentum of the two vehicles once they are stuck together after the crash?

• 0 kg m/s

• 14,000 kg m/s

• 19,800 kg m/s

• 33,800 kg m/s

A 2 250 kg Tesla going 15.0 m/s collides with a parked 3 190 kg Dodge Ram. During the collision they stick together as they deform. The two vehicles then travel at 6.20 m/s.

Momentum (a)   (is/is not) conserved in this crash.

A 2 250 kg Tesla going 15.0 m/s collides with a parked 3 190 kg Dodge Ram. During the collision they stick together as they deform. The two vehicles then travel at 6.20 m/s. The vehicles came to a stop in 4.78 m.

What was the stopping acceleration?

• 0 m/ $s^2$

• -4.03 m/ $s^2$

• -4.78 m/ $s^2$

• -9.81m/ $s^2$