First slide

Kinetic friction

Question

A box is placed on the floor of a truck moving with an acceleration of 7 ms^–2. If the coefficient of kinetic friction between the box and surface of the truck is 0.5, find the acceleration of the box relative to the truck

Moderate

A

1.7ms^-2
B

2.1ms^-2
C

3.5ms^-2
D

4.5ms^-2

Solution

a_b = a_T - µg
= 7 – 0.5 × 9.8
a_b = 7 – 4.9
a_b = 2.1 m/s²

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App