Question

Asked Oct 28, 2019

13 views

A shopper pushes a grocery cart for a distance 21.5 m at constant speed on level ground, against a 45 N frictional force. He pushes in a direction 27.5° below the horizontal.

**a.) **What is the work done on the cart by friction, in joules?

**b.)**What is the work done on the cart by the gravitational force, in joules?

**c.) **What is the work done on the cart by the shopper, in joules?

**d.)** Find the magnitude of the force, in newtons, that the shopper exerts on the cart.

**e.) **What is the total work done on the cart, in joules?

Step 1

Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and specify the other subparts (up to 3) you’d like answered.

Step 2

Given:

Distance travelled = 21.5 m

Frictional force = 45 N

Angle with respect to horizontal = 27.5^{ᵒ}

Step 3

Part (a): Work done on the car...

Tagged in

Q: Two blocks are attached by strings of negligible mass to a pulley with two radii R1=0.29 m and R2=0....

A: Given values:R1 = 0.29 mR2 = 0.69 mMoment of inertia of the pulley, I = 0.221 Kg m2M1 = 2.9 kgM2 = ...

Q: (Figure 2)The drawbridge then starts to rise. The dancer continues to stand on one leg. The drawbrid...

A: Drawing the free body diagram:

Q: A block of mass M rests on an incline plane. The coefficient of static friction between the plane an...

A: The free body diagram is given below:

Q: What is Pascals Principal explained in words?e

A: According to the Pascal’s principle:A change in pressure in one part in a fluid which is at rest in ...

Q: a 20g BB traveling at 30m/s has an inelastic collision with a 250g block of clay that is at rest. Ha...

A: Given information:

Q: A figure skater is spinning with an angular velocity of +16.5 rad/s. She then comes to a stop over a...

A: (a) Average angular acceleration is,

Q: An object, with mass 94 kg and speed 19 m/s relative to an observer, explodes into two pieces, one 5...

A: the big piece will have a mass of 5/6th that of the object.

Q: A flywheel with a diameter of 1.81 m is rotating at an angular speed of 197 rev/min. (a) What const...

A: (a)The formula for the final angular velocity in term of the constant angular acceleration and time ...

Q: 7. You are working during your summer break as an amusement CR park ride operator. The ride you are ...

A: (a)The figure shows the free body diagram for the given case